reciprocatev.

Brit.

/rᵻˈsɪprəkeɪt/, U.S.

/rəˈsɪprəˌkeɪt/,

/riˈsɪprəˌkeɪt/

Forms: 1500s– reciprocate, 1600s reciprocrate.

Origin: A borrowing from Latin. Etymons: Latin reciprocāt-, reciprocāre.

Etymology: < classical Latin reciprocāt-, past participial stem (see -ate suffix³) of reciprocāre to move backwards and forwards or to and fro, to move in the opposite direction, to move back, reverse, to return or requite (a feeling), (passive, of statements) to be the converse of each other < reciprocus reciproque adj. Compare Middle French, French †reciproquer , French réciproquer to do something in or by way of return, to respond in kind (c1380), to go back, to return (1496 in an apparently isolated attestation). Compare earlier reciprocation n.The form reciprocrate probably results from assimilation; compare similar forms at reciprocation n. and reciprocal adj.

1. Logic.

a. intransitive. To correspond or agree with; to be interchangeable or equivalent.

ΘΚΠ

the world > relative properties > order > agreement, harmony, or congruity > agree/be in harmony/be congruous [verb (intransitive)]

accord1340

cord1340

concordc1374

agree1447

to stand togetherc1449

rhyme?a1475

commonc1475

gree?a1513

correspond1529

consent1540

cotton1567

pan1572

reciprocate1574

concur1576

meet1579

suit1589

sorta1592

condog1592

square1592

fit1594

congrue1600

sympathize1601

symbolize1605

to go even1607

coherea1616

congreea1616

hita1616

piece1622

to fall in1626

harmonize1629

consist1638

comply1645

shadow1648

quare1651

atonea1657

symphonize1661

syncretize1675

chime1690

jibe1813

consone1873

1574 R. MacIlmaine tr. P. de La Ramée Logike i. xxiv. 54 The distribution and definition: bothe the one and the other dothe reciprocate.

1683 O. U. Parish-churches No Conventicles 7 Logicians will tell [him]..that every Definition must reciprocate with the Thing defin'd.

1747 S. Fielding Familiar Lett. David Simple II. 290 Truth and Falshood can never reciprocate, but are immutably distinct thro' all Eternity.

1788 T. Taylor Diss. Platonic Doctr. Ideas in tr. Proclus Philos. & Math. Comm. I. p. xliv Risibility..mutually reciprocates with its subject; since every man is risible, and whatever is risible is man.

a1806 S. Horsley Serm. (1812) I. ix. 175 This atonement was the end of the incarnation: And the two articles reciprocate.

1850 H. H. Munro Man. Logic 104 In universal propositions the predicate..is universal when it can be substituted for, or reciprocate with the subject.

1910 Mind 19 545 Aristotle..discussed the nature of the premises of demonstration, and urged that they, and therefore the conclusion also, must reciprocate.

1995 T. Irwin & G. Fine tr. Aristotle Selections 36 If two things belong to the same thing, and the extreme term reciprocates with one of them, then the other one of the things predicated will also belong to the one that reciprocates.

†b. transitive. To make correspondent with; to make equivalent; to transpose, convert. Obsolete.

ΘΚΠ

the world > relative properties > order > agreement, harmony, or congruity > adaptation or adjustment > adapt or adjust [verb (transitive)] > cause to correspond or agree

reciprocate1620

match1680

answer1726

to key to ——1910

to key into ——1931

1620 T. Granger Syntagma Logicum 47 End is adequate which is euened or reciprocated with the whole thing.

a1639 J. Stoughton Learned Treat. (1640) i. 38 It is more aptly resembled to a Rule or Canon, as it respects faith and things to be beleeved, with which it is every way reciprocated.

1673 E. Coles Pract. Disc. God's Sovereignty 120 It is as if He had said, All that I undertake for, are Thine Elect: And All Thine Elect I undertake for: He therefore reciprocates the terms of Relation, Turns them to and again.

1788 T. Reid Aristotle's Logic v. §2. 111 If the attribute cannot be reciprocated, it must be something contained in the definition or not.

†a. intransitive. To enter into a reciprocal relationship with; to exchange; to share. Obsolete.

ΘΚΠ

the world > action or operation > behaviour > reciprocal treatment or return of an action > make a return [verb (intransitive)]

returna1325

a Roland for an Oliver1548

reciprocate1600

revie1604

correspond1632

to return the compliment1655

retort1783

1600 tr. T. Garzoni Hosp. Incurable Fooles 149 She is called Domicilla Feronia, who hath an husband that blockishlie reciprocateth with her in the same folly [It. che s'accorda con lei nell'istessa pazzia stupendamente].

1626 R. Harris Hezekiah's Recov. 4 In manners wee must reciprocate with men, much more with God.

a1662 P. Heylyn Cyprianus Angl. (1671) i. 52 She so far reciprocated with him in the like affection..that some assurances past between them of a future Marriage.

1781 W. Cowper Charity 119 'Tis thus reciprocating each with each Alternately the nations learn and teach.

b. transitive. To give and receive mutually; to exchange, swap, trade. Formerly also: †to have in common, share (obsolete). Now rare.

ΘΚΠ

the mind > possession > sharing > share [verb (transitive)]

dealOE

partc1330

skair1462

parten1508

usurpa1513

communicatea1530

participate1531

partake1563

impart1581

reciprocate1611

copart1613

share1613

to take share of (something)1678

the world > time > change > exchange > exchange, change for [verb (transitive)] > interchange

changec1300

interchangec1374

exchange1604

reciprocate1611

alternatea1711

counterchange1728

1611 R. Cotgrave Dict. French & Eng. Tongues Reciproquer, to reciprocate, interchange, returne one for another.

1655 H. L'Estrange Reign King Charles 6 Affectionate adieus, reciprocated and interchanged between the King and herself.

a1660 J. Evelyn Diary anno 1645 (1955) II. 345 The Waters reciprocating their tides with the neighbouring sea.

1719 J. T. Philipps tr. B. Ziegenbalg Thirty-four Confer. 34 We are not come here to reciprocate Questions and Answers out of this or that System of borrow'd Principles.

a1766 F. Sheridan Concl. Mem. Miss Sidney Bidulph (1770) IV. xxv. 168 Oh, Edward, I wish thy vows and Cecilia's were reciprocated with the same solemnity, as those of Falkland and Miss Arnold were last night.

1837 J. Phillips Treat. Geol. I. 24 The sources of variation which are daily in action may not exactly reciprocate their influence.

1866 W. D. Howells Venetian Life iii. 34 At night men crowd the close little caffès, where they reciprocate smoke, respiration, and animal heat.

1876 ‘G. Eliot’ Daniel Deronda III. v. xxxvii. 130 He had found it impossible to reciprocate confidences with one who looked up to him.

1976 J. E. Weems Death Song (1991) vi. 73 Mexicans and Apaches reciprocated brutalities..and the Mexican government offered bounties for scalps.

a. intransitive. To do something in or by way of return; to respond in kind to an action, gesture, or emotion, esp. a positive one; esp. to return love or affection.

ΘΚΠ

the world > action or operation > behaviour > good behaviour > courtesy > courteous act or expression > use formal courtesy in act or expression [verb (intransitive)] > in return

reciprocate1607

to return the compliment1655

the mind > emotion > love > amorous love > be in love [verb (intransitive)] > return love or liking

reciprocate1883

1607 B. Jonson Volpone iii. ix. sig. H4^v Your Patron should reciprocate ?

a1639 J. Stoughton Forme Wholsome Words (1640) i. 6 He is of a very barbarous spirit that will not reciprocate and answer love with love.

1791 J. Boswell Life Johnson anno 1779 II. 303 Then when the two glasses of water were brought,..[he said], ‘Madam, let us reciprocate.’

1845 N. P. Willis Dashes at Life with Free Pencil 115 We hope he will reciprocate by opening a subscription-book in his pie-magazine.

1874 L. Carr Judith Gwynne I. viii. 258 Oh! yes, thanks; quite right again. And I reciprocate by hoping that you have got over that horrible fire.

1883 ‘M. Twain’ Life on Mississippi lv. 542 He had loved one ‘too fair for earth’, and she had reciprocated.

1936 L. C. Douglas White Banners xi. 235 Hannah liked her, and felt that the girl heartily reciprocated.

1970 Russ. Rev. 29 33 The Russians study and benefit from Western, particularly U.S., research far more than we reciprocate.

2002 R. Gervais & S. Merchant Office: Scripts 1st Ser. Episode 6. 262 (stage direct.) Ricky offers his hand for Brent to shake. He doesn't reciprocate.

2004 Chicago Tribune (Midwest ed.) 13 Aug. ii. 2/3 If your family is hosting the wedding, your new [mother-]in-law might hope to reciprocate or get in on the hosting action in some way.

b. transitive. To return in kind (an action, gesture, or emotion, esp. a positive one); esp. to requite (love or affection).

ΘΚΠ

the world > action or operation > behaviour > reciprocal treatment or return of an action > treat one as he has been treated [verb (transitive)] > do or give in return

retribute?1570

return1584

repay1587

rebite1594

retort1637

retally1639

reciprocate1649

1649 F. Roberts Clavis Bibliorum (ed. 2) ii. ii. 101 The Church reciprocates her utmost affection to Christ.

1650 J. Wright tr. J.-P. Camus Loving Enemie 78 He thought one heart too little to reciprocate so entire an affection.

1797 J. Bowdoin Opinions Comm. Intercourse U.S. & Great Brit. 48 A commercial intercourse ought equally..to reciprocate such advantages;—and the benefits received should equal those which are bestowed.

1802 T. Jefferson Addresses, Messages, & Replies (1984) 510 I reciprocate your kind prayers for the protection and blessing of the common Father and Creator of man.

1819 W. Irving Rip Van Winkle in Sketch Bk. i. 69 I verily believe he reciprocated the sentiment with all his heart.

1855 W. H. Prescott Hist. Reign Philip II of Spain I. i. ii. 52 He took some pains..to reciprocate the civilities he had received, by entertaining his hosts in return.

1896 A. R. White Youth's Educator ii. 19 Children can be trained to reciprocate courtesies..without making prim little martinets of them.

1903 G. B. Shaw Man & Superman iii. 97 He..is peevish and sensitive when his advances are not reciprocated.

1924 C. Mackenzie Old Men of Sea viii. 131 I was rather disappointed to hear that she was unlikely to reciprocate Dick Duffy's affection.

1988 G. Sayer Jack xiii. 144 There would be..invitations to dine in other colleges, invitations that he was bound to reciprocate.

2004 Vanity Fair (N.Y.) July 149/3 Black culture has started to reciprocate his admiration.

†4. intransitive. To go back or return; to have a backward direction. Obsolete.

ΘΚΠ

the world > space > direction > specific directions > have specific directions [verb (intransitive)] > have backward direction or turn back

reverberate1578

reciprocate1623

the world > movement > motion in a certain direction > backward movement > move backwards [verb (intransitive)] > return towards point of departure

repaira1325

returna1325

rebounda1382

redounda1382

recovera1393

to go backc1425

revertc1475

renew1488

reverse1542

retire1567

revolve1587

reciprocate1623

retrovert1639

to get back1664

recur1719

hoicks1762

boomerang1900

1623 H. Cockeram Eng. Dict. Reciprocate, to returne from whence one came.

1625 T. Jackson Treat. Originall of Vnbeliefe iii. xix. 170 Iupiter..tearmed Neptune in the sea..Venilia in the sea-waue whilest current to the land; Salatia in the same waue reciprocating.

1629 T. Jackson Treat. Divine Essence ii. 95 Our thankfulnesse would reciprocate upon the Fountaine from which they flow.

1661 R. Lovell Πανζωορυκτολογια, sive Panzoologicomineralogia Isagoge sig. B8 The gula, to which the intestine is joyned, which is single, and reciprocating towards the head.

a. transitive. To alternate the direction of, esp. backwards and forwards; to cause to oscillate. Now Mechanics.

ΘΚΠ

the world > movement > motion in specific manner > alternating or reciprocating motion > move to and fro or up and down [verb (transitive)]

work1617

reciprocate1653

pump1803

gig1815

dodge1820

pumphandle1851

trombone1879

yo-yo1973

1653 W. Harvey Anat. Exercitations vii. 39 [The blood] like Euripus reciprocating its motion again and again, hither and thither.

a1677 I. Barrow Of Love of God (1680) 249 Vainly reciprocating the saw of endless contention.

a1877 E. H. Knight Pract. Dict. Mech. II. 1900/2 The propeller is reciprocated by a horizontal engine.

1949 A. C. Walshaw Heat Engines (ed. 3) ii. 24 Motion is given to the bell-cranks by eccentrics E, which reciprocate the side links D carrying the bell-cranks on pivots.

1977 Offshore Engineer Aug. 29/2 The tubing does not have to be reciprocated (moved up and down in the hole).

1994 Comments Plasma Physics & Controlled Fusion 36 1602 Conventional fast probe drives are mounted on a port and are reciprocated by an external system of pneumatic pistons.

b. intransitive. To move backwards and forwards in a straight line; to oscillate (now Mechanics). Also in extended use: †to rise and fall, to vary (obsolete).

ΘΚΠ

the world > movement > motion in specific manner > alternating or reciprocating motion > move to and fro or up and down [verb (intransitive)]

to come and goc1384

babble1440

play1513

popple1555

dance1563

bob1568

dodge1645

waft1650

reciprocate1678

lollop1851

pump1887

piston1930

yo-yo1967

the world > matter > properties of materials > temperature > [verb (intransitive)] > vary (of temperature)

reciprocate1730

1678 R. Cudworth True Intellect. Syst. Universe i. iv. 221 Whereby things reciprocate forwards and backwards, as when a Bow is successively Intended and Remitted.

1730 Philos. Trans. 1729–30 (Royal Soc.) 36 254 Always in a Morning it reciprocated between 80 Deg. and 100 Deg.

1847 C. Holtzapffel Turning & Mech. Manip. II. xxvii. 740 The saw blade is strained in a rectangular frame, which both reciprocates and descends in a vertical plane.

1946 L. Toft & A. T. J. Kersey Theory of Machines (ed. 5) ix. 270 In one type of ‘generating’ machine, the cutters..reciprocate towards O without lateral movement.

1981 M. A. Parker & F. Pickup Engin. Drawing (ed. 3) v. 132 The follower working with a radial cam reciprocates or oscillates in a plane at right angles to the cam axis.

1993 Soldier of Fortune Feb. 20/3 The barrel [of the gun is] fixed to a tubular receiver in which the bolt group reciprocates.

6. Mathematics.

a. transitive. To find the polar reciprocal of (a curve). Also: (of a geometric figure) to be involved in the transformation of (a given figure) into a reciprocal figure.Also used analogously in spaces of higher dimension.

ΘΚΠ

the world > relative properties > number > geometry > curve > make into a curve [verb (transitive)] > interact

osculate1728

reciprocate1861

superosculate1891

1861 N. M. Ferrers Elem. Treat. Trilinear Co-ordinates vi. 100 The process of generating E from L, or L from E, is called reciprocating L or E.

1931 Math. Gaz. 15 493 Reciprocate the conic Σ with respect to itself.

1958 Proc. London Math. Soc. 8 444 If a secant plane of Q is a null plane of a screw that reciprocates Q into itself, so is the polar, in Q, of this secant plane.

1968 H. S. M. Coxeter Twelve Geom. Ess. vii. 164 The quadric (9·2) or (9·3), which reciprocates two mutually inscribed simplexes into each other, is of the second type... It contains lines, but no planes.

1997 Jrnl. London Math. Soc. 55 549 The..sphere reciprocates the whole cube into the octahedron β₃ = {3,4}.

b. intransitive. To pass into by reciprocation.

ΘΚΠ

the world > relative properties > number > geometry > curve > interact [verb (intransitive)]

reciprocate1861

osculate1885

1861 N. M. Ferrers Elem. Treat. Trilinear Co-ordinates vi. 103 The asymptotes..reciprocate into the points of contact of the tangents drawn to the reciprocal curve from the centre of the auxiliary conic.

1886 J. J. Sylvester in Amer. Jrnl. Math. 8 211 As simple examples of absolute reciprocants we may take..^a/ _t^³⁄₂, which reciprocates into −^α/ _τ^³⁄₂.

1932 Math. Gaz. 16 325 The hyperbolas reciprocate into circles touching the two parallel lines.

This entry has been updated (OED Third Edition, June 2009; most recently modified version published online March 2022).

单词	reciprocate
释义	reciprocateadj. Brit. /rᵻˈsɪprəkət/, U.S. /rəˈsɪprəˌkət/, /riˈsɪprəˌkət/ Forms: 1500s– reciprocate; also Scottish pre-1700 reciprocat. Origin: A borrowing from Latin. Etymon: Latin reciprocātus. Etymology: < classical Latin reciprocātus, past participle of reciprocāre reciprocate v. Compare reciproque adj. Characterized by reciprocity; reciprocal. ΘΚΠ the world > relative properties > relationship > correlation > [adjective] redditivec1525 correlative1530 reciprocate?1532 responsive1604 reciprocal1617 collateral1659 equivalenta1661 responding1670 co-relative1761 relative1849 correlate1850 correlated1859 complementary1860 obverse1875 double of1876 complemental1882–3 dual1947 intercorrelational1970 the world > relative properties > relationship > correlation > [adjective] > mutual or reciprocal evena1425 interchangeablec1450 relativea1500 reciprocativea1504 mutual1513 reciproque?1533 reciprocous1567 requiteda1586 intermutual1595 alternate1600 commutual1604 vicissitudinary1629 reciprocal1632 reflexivea1635 reciprocated1663 related1671 mutuous1683 turn about1802 interdependent1817 interrelated1827 reciprocating1827 reciprocate1833 transmutuala1834 reflective1839 interpendent1855 interradiating1858 two-way1950 ?1532 T. Paynell tr. Erasmus De Contemptu Mundi ix. sig. I What & thou haue a wyfe yea thou must nedes be hadde for wedlocke is a thynge reciprocate? 1533 King Henry VIII Let. 12 Sept. in Camden Misc. (1992) XXXI. 49 Neither wee speake of our ships, neither he of his milles... This is reciprocate, this is indifferent. a1605 R. Bannatyne Memorials Trans. Scotl. (1836) 114 He desyrit all that wold nocht be joyned with him in ane reciprocat band..to avoyd the toun. 1619 J. Sempill Sacrilege Sacredly Handled 28 They are of Nature, Reciprocate; that is, the one cannot be without the other. 1653 Consid. Dissolving Court of Chancery 30 Principles..so interwoven and radicated in the very Being of Parliaments, so inseparable from it, and so reciprocate to it. 1799 Repertory of Arts 10 244 No experienced engineer will be at a loss to produce a reciprocate motion to any extent, and in any direction required, perpendicular, horizontal, or inclined. 1833 Fraser's Mag. 8 343 The congenial and reciprocate stupidity and ignorance of the majority of actors and the majority in audiences. 1853 Western Hort. Rev. May 342/1 The roots which are..multiplied in the same proportion as the branches, these parts always maintaining a reciprocate relation with each other. 1976 Taxon 25 520 Loan a reasonable number of specimens for a reasonable period, always on a reciprocate basis and only to Institutions. 1979 Jrnl. Arachnol. 7 251 The reciprocate grasping and retraction by the two chelicerae slowly tears the prey's exoskeleton. 2001 M. Higgins et al. Sci. Fiction & Organization iii. x. 163 Peculiar discursive rules where certain ontological and epistemological statements are allowed.., but the reciprocate communicational practices are disallowed. This entry has been updated (OED Third Edition, June 2009; most recently modified version published online March 2022). reciprocatev. Brit. /rᵻˈsɪprəkeɪt/, U.S. /rəˈsɪprəˌkeɪt/, /riˈsɪprəˌkeɪt/ Forms: 1500s– reciprocate, 1600s reciprocrate. Origin: A borrowing from Latin. Etymons: Latin reciprocāt-, reciprocāre. Etymology: < classical Latin reciprocāt-, past participial stem (see -ate suffix³) of reciprocāre to move backwards and forwards or to and fro, to move in the opposite direction, to move back, reverse, to return or requite (a feeling), (passive, of statements) to be the converse of each other < reciprocus reciproque adj. Compare Middle French, French †reciproquer , French réciproquer to do something in or by way of return, to respond in kind (c1380), to go back, to return (1496 in an apparently isolated attestation). Compare earlier reciprocation n.The form reciprocrate probably results from assimilation; compare similar forms at reciprocation n. and reciprocal adj. 1. Logic. a. intransitive. To correspond or agree with; to be interchangeable or equivalent. ΘΚΠ the world > relative properties > order > agreement, harmony, or congruity > agree/be in harmony/be congruous [verb (intransitive)] accord1340 cord1340 concordc1374 agree1447 to stand togetherc1449 rhyme?a1475 commonc1475 gree?a1513 correspond1529 consent1540 cotton1567 pan1572 reciprocate1574 concur1576 meet1579 suit1589 sorta1592 condog1592 square1592 fit1594 congrue1600 sympathize1601 symbolize1605 to go even1607 coherea1616 congreea1616 hita1616 piece1622 to fall in1626 harmonize1629 consist1638 comply1645 shadow1648 quare1651 atonea1657 symphonize1661 syncretize1675 chime1690 jibe1813 consone1873 1574 R. MacIlmaine tr. P. de La Ramée Logike i. xxiv. 54 The distribution and definition: bothe the one and the other dothe reciprocate. 1683 O. U. Parish-churches No Conventicles 7 Logicians will tell [him]..that every Definition must reciprocate with the Thing defin'd. 1747 S. Fielding Familiar Lett. David Simple II. 290 Truth and Falshood can never reciprocate, but are immutably distinct thro' all Eternity. 1788 T. Taylor Diss. Platonic Doctr. Ideas in tr. Proclus Philos. & Math. Comm. I. p. xliv Risibility..mutually reciprocates with its subject; since every man is risible, and whatever is risible is man. a1806 S. Horsley Serm. (1812) I. ix. 175 This atonement was the end of the incarnation: And the two articles reciprocate. 1850 H. H. Munro Man. Logic 104 In universal propositions the predicate..is universal when it can be substituted for, or reciprocate with the subject. 1910 Mind 19 545 Aristotle..discussed the nature of the premises of demonstration, and urged that they, and therefore the conclusion also, must reciprocate. 1995 T. Irwin & G. Fine tr. Aristotle Selections 36 If two things belong to the same thing, and the extreme term reciprocates with one of them, then the other one of the things predicated will also belong to the one that reciprocates. †b. transitive. To make correspondent with; to make equivalent; to transpose, convert. Obsolete. ΘΚΠ the world > relative properties > order > agreement, harmony, or congruity > adaptation or adjustment > adapt or adjust [verb (transitive)] > cause to correspond or agree reciprocate1620 match1680 answer1726 to key to ——1910 to key into ——1931 1620 T. Granger Syntagma Logicum 47 End is adequate which is euened or reciprocated with the whole thing. a1639 J. Stoughton Learned Treat. (1640) i. 38 It is more aptly resembled to a Rule or Canon, as it respects faith and things to be beleeved, with which it is every way reciprocated. 1673 E. Coles Pract. Disc. God's Sovereignty 120 It is as if He had said, All that I undertake for, are Thine Elect: And All Thine Elect I undertake for: He therefore reciprocates the terms of Relation, Turns them to and again. 1788 T. Reid Aristotle's Logic v. §2. 111 If the attribute cannot be reciprocated, it must be something contained in the definition or not. 2. †a. intransitive. To enter into a reciprocal relationship with; to exchange; to share. Obsolete. ΘΚΠ the world > action or operation > behaviour > reciprocal treatment or return of an action > make a return [verb (intransitive)] returna1325 a Roland for an Oliver1548 reciprocate1600 revie1604 correspond1632 to return the compliment1655 retort1783 1600 tr. T. Garzoni Hosp. Incurable Fooles 149 She is called Domicilla Feronia, who hath an husband that blockishlie reciprocateth with her in the same folly [It. che s'accorda con lei nell'istessa pazzia stupendamente]. 1626 R. Harris Hezekiah's Recov. 4 In manners wee must reciprocate with men, much more with God. a1662 P. Heylyn Cyprianus Angl. (1671) i. 52 She so far reciprocated with him in the like affection..that some assurances past between them of a future Marriage. 1781 W. Cowper Charity 119 'Tis thus reciprocating each with each Alternately the nations learn and teach. b. transitive. To give and receive mutually; to exchange, swap, trade. Formerly also: †to have in common, share (obsolete). Now rare. ΘΚΠ the mind > possession > sharing > share [verb (transitive)] dealOE partc1330 skair1462 parten1508 usurpa1513 communicatea1530 participate1531 partake1563 impart1581 reciprocate1611 copart1613 share1613 to take share of (something)1678 the world > time > change > exchange > exchange, change for [verb (transitive)] > interchange changec1300 interchangec1374 exchange1604 reciprocate1611 alternatea1711 counterchange1728 1611 R. Cotgrave Dict. French & Eng. Tongues Reciproquer, to reciprocate, interchange, returne one for another. 1655 H. L'Estrange Reign King Charles 6 Affectionate adieus, reciprocated and interchanged between the King and herself. a1660 J. Evelyn Diary anno 1645 (1955) II. 345 The Waters reciprocating their tides with the neighbouring sea. 1719 J. T. Philipps tr. B. Ziegenbalg Thirty-four Confer. 34 We are not come here to reciprocate Questions and Answers out of this or that System of borrow'd Principles. a1766 F. Sheridan Concl. Mem. Miss Sidney Bidulph (1770) IV. xxv. 168 Oh, Edward, I wish thy vows and Cecilia's were reciprocated with the same solemnity, as those of Falkland and Miss Arnold were last night. 1837 J. Phillips Treat. Geol. I. 24 The sources of variation which are daily in action may not exactly reciprocate their influence. 1866 W. D. Howells Venetian Life iii. 34 At night men crowd the close little caffès, where they reciprocate smoke, respiration, and animal heat. 1876 ‘G. Eliot’ Daniel Deronda III. v. xxxvii. 130 He had found it impossible to reciprocate confidences with one who looked up to him. 1976 J. E. Weems Death Song (1991) vi. 73 Mexicans and Apaches reciprocated brutalities..and the Mexican government offered bounties for scalps. 3. a. intransitive. To do something in or by way of return; to respond in kind to an action, gesture, or emotion, esp. a positive one; esp. to return love or affection. ΘΚΠ the world > action or operation > behaviour > good behaviour > courtesy > courteous act or expression > use formal courtesy in act or expression [verb (intransitive)] > in return reciprocate1607 to return the compliment1655 the mind > emotion > love > amorous love > be in love [verb (intransitive)] > return love or liking reciprocate1883 1607 B. Jonson Volpone iii. ix. sig. H4^v Your Patron should reciprocate ? View more context for this quotation a1639 J. Stoughton Forme Wholsome Words (1640) i. 6 He is of a very barbarous spirit that will not reciprocate and answer love with love. 1791 J. Boswell Life Johnson anno 1779 II. 303 Then when the two glasses of water were brought,..[he said], ‘Madam, let us reciprocate.’ 1845 N. P. Willis Dashes at Life with Free Pencil 115 We hope he will reciprocate by opening a subscription-book in his pie-magazine. 1874 L. Carr Judith Gwynne I. viii. 258 Oh! yes, thanks; quite right again. And I reciprocate by hoping that you have got over that horrible fire. 1883 ‘M. Twain’ Life on Mississippi lv. 542 He had loved one ‘too fair for earth’, and she had reciprocated. 1936 L. C. Douglas White Banners xi. 235 Hannah liked her, and felt that the girl heartily reciprocated. 1970 Russ. Rev. 29 33 The Russians study and benefit from Western, particularly U.S., research far more than we reciprocate. 2002 R. Gervais & S. Merchant Office: Scripts 1st Ser. Episode 6. 262 (stage direct.) Ricky offers his hand for Brent to shake. He doesn't reciprocate. 2004 Chicago Tribune (Midwest ed.) 13 Aug. ii. 2/3 If your family is hosting the wedding, your new [mother-]in-law might hope to reciprocate or get in on the hosting action in some way. b. transitive. To return in kind (an action, gesture, or emotion, esp. a positive one); esp. to requite (love or affection). ΘΚΠ the world > action or operation > behaviour > reciprocal treatment or return of an action > treat one as he has been treated [verb (transitive)] > do or give in return retribute?1570 return1584 repay1587 rebite1594 retort1637 retally1639 reciprocate1649 1649 F. Roberts Clavis Bibliorum (ed. 2) ii. ii. 101 The Church reciprocates her utmost affection to Christ. 1650 J. Wright tr. J.-P. Camus Loving Enemie 78 He thought one heart too little to reciprocate so entire an affection. 1797 J. Bowdoin Opinions Comm. Intercourse U.S. & Great Brit. 48 A commercial intercourse ought equally..to reciprocate such advantages;—and the benefits received should equal those which are bestowed. 1802 T. Jefferson Addresses, Messages, & Replies (1984) 510 I reciprocate your kind prayers for the protection and blessing of the common Father and Creator of man. 1819 W. Irving Rip Van Winkle in Sketch Bk. i. 69 I verily believe he reciprocated the sentiment with all his heart. 1855 W. H. Prescott Hist. Reign Philip II of Spain I. i. ii. 52 He took some pains..to reciprocate the civilities he had received, by entertaining his hosts in return. 1896 A. R. White Youth's Educator ii. 19 Children can be trained to reciprocate courtesies..without making prim little martinets of them. 1903 G. B. Shaw Man & Superman iii. 97 He..is peevish and sensitive when his advances are not reciprocated. 1924 C. Mackenzie Old Men of Sea viii. 131 I was rather disappointed to hear that she was unlikely to reciprocate Dick Duffy's affection. 1988 G. Sayer Jack xiii. 144 There would be..invitations to dine in other colleges, invitations that he was bound to reciprocate. 2004 Vanity Fair (N.Y.) July 149/3 Black culture has started to reciprocate his admiration. †4. intransitive. To go back or return; to have a backward direction. Obsolete. ΘΚΠ the world > space > direction > specific directions > have specific directions [verb (intransitive)] > have backward direction or turn back reverberate1578 reciprocate1623 the world > movement > motion in a certain direction > backward movement > move backwards [verb (intransitive)] > return towards point of departure repaira1325 returna1325 rebounda1382 redounda1382 recovera1393 to go backc1425 revertc1475 renew1488 reverse1542 retire1567 revolve1587 reciprocate1623 retrovert1639 to get back1664 recur1719 hoicks1762 boomerang1900 1623 H. Cockeram Eng. Dict. Reciprocate, to returne from whence one came. 1625 T. Jackson Treat. Originall of Vnbeliefe iii. xix. 170 Iupiter..tearmed Neptune in the sea..Venilia in the sea-waue whilest current to the land; Salatia in the same waue reciprocating. 1629 T. Jackson Treat. Divine Essence ii. 95 Our thankfulnesse would reciprocate upon the Fountaine from which they flow. 1661 R. Lovell Πανζωορυκτολογια, sive Panzoologicomineralogia Isagoge sig. B8 The gula, to which the intestine is joyned, which is single, and reciprocating towards the head. 5. a. transitive. To alternate the direction of, esp. backwards and forwards; to cause to oscillate. Now Mechanics. ΘΚΠ the world > movement > motion in specific manner > alternating or reciprocating motion > move to and fro or up and down [verb (transitive)] work1617 reciprocate1653 pump1803 gig1815 dodge1820 pumphandle1851 trombone1879 yo-yo1973 1653 W. Harvey Anat. Exercitations vii. 39 [The blood] like Euripus reciprocating its motion again and again, hither and thither. a1677 I. Barrow Of Love of God (1680) 249 Vainly reciprocating the saw of endless contention. a1877 E. H. Knight Pract. Dict. Mech. II. 1900/2 The propeller is reciprocated by a horizontal engine. 1949 A. C. Walshaw Heat Engines (ed. 3) ii. 24 Motion is given to the bell-cranks by eccentrics E, which reciprocate the side links D carrying the bell-cranks on pivots. 1977 Offshore Engineer Aug. 29/2 The tubing does not have to be reciprocated (moved up and down in the hole). 1994 Comments Plasma Physics & Controlled Fusion 36 1602 Conventional fast probe drives are mounted on a port and are reciprocated by an external system of pneumatic pistons. b. intransitive. To move backwards and forwards in a straight line; to oscillate (now Mechanics). Also in extended use: †to rise and fall, to vary (obsolete). ΘΚΠ the world > movement > motion in specific manner > alternating or reciprocating motion > move to and fro or up and down [verb (intransitive)] to come and goc1384 babble1440 play1513 popple1555 dance1563 bob1568 dodge1645 waft1650 reciprocate1678 lollop1851 pump1887 piston1930 yo-yo1967 the world > matter > properties of materials > temperature > [verb (intransitive)] > vary (of temperature) reciprocate1730 1678 R. Cudworth True Intellect. Syst. Universe i. iv. 221 Whereby things reciprocate forwards and backwards, as when a Bow is successively Intended and Remitted. 1730 Philos. Trans. 1729–30 (Royal Soc.) 36 254 Always in a Morning it reciprocated between 80 Deg. and 100 Deg. 1847 C. Holtzapffel Turning & Mech. Manip. II. xxvii. 740 The saw blade is strained in a rectangular frame, which both reciprocates and descends in a vertical plane. 1946 L. Toft & A. T. J. Kersey Theory of Machines (ed. 5) ix. 270 In one type of ‘generating’ machine, the cutters..reciprocate towards O without lateral movement. 1981 M. A. Parker & F. Pickup Engin. Drawing (ed. 3) v. 132 The follower working with a radial cam reciprocates or oscillates in a plane at right angles to the cam axis. 1993 Soldier of Fortune Feb. 20/3 The barrel [of the gun is] fixed to a tubular receiver in which the bolt group reciprocates. 6. Mathematics. a. transitive. To find the polar reciprocal of (a curve). Also: (of a geometric figure) to be involved in the transformation of (a given figure) into a reciprocal figure.Also used analogously in spaces of higher dimension. ΘΚΠ the world > relative properties > number > geometry > curve > make into a curve [verb (transitive)] > interact osculate1728 reciprocate1861 superosculate1891 1861 N. M. Ferrers Elem. Treat. Trilinear Co-ordinates vi. 100 The process of generating E from L, or L from E, is called reciprocating L or E. 1931 Math. Gaz. 15 493 Reciprocate the conic Σ with respect to itself. 1958 Proc. London Math. Soc. 8 444 If a secant plane of Q is a null plane of a screw that reciprocates Q into itself, so is the polar, in Q, of this secant plane. 1968 H. S. M. Coxeter Twelve Geom. Ess. vii. 164 The quadric (9·2) or (9·3), which reciprocates two mutually inscribed simplexes into each other, is of the second type... It contains lines, but no planes. 1997 Jrnl. London Math. Soc. 55 549 The..sphere reciprocates the whole cube into the octahedron β₃ = {3,4}. b. intransitive. To pass into by reciprocation. ΘΚΠ the world > relative properties > number > geometry > curve > interact [verb (intransitive)] reciprocate1861 osculate1885 1861 N. M. Ferrers Elem. Treat. Trilinear Co-ordinates vi. 103 The asymptotes..reciprocate into the points of contact of the tangents drawn to the reciprocal curve from the centre of the auxiliary conic. 1886 J. J. Sylvester in Amer. Jrnl. Math. 8 211 As simple examples of absolute reciprocants we may take..^a/ _t^³⁄₂, which reciprocates into −^α/ _τ^³⁄₂. 1932 Math. Gaz. 16 325 The hyperbolas reciprocate into circles touching the two parallel lines. This entry has been updated (OED Third Edition, June 2009; most recently modified version published online March 2022). < adj.?1532v.1574
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reciprocateadj.

reciprocatev.