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单词 retroact
释义

retroactv.

Brit. /ˌrɛtrəʊˈakt/, U.S. /ˌrɛtroʊˈæk(t)/
Origin: A borrowing from Latin. Etymons: Latin retroāct-, retroagere.
Etymology: < classical Latin retroāct-, past participial stem of retroagere to drive or thrust backwards, to trace backwards in time, to invert, to take back, cancel, withdraw < retro retro- prefix + agere act v., probably after retroactive adj., retroaction n. Compare also French rétroagir (1791). N.E.D. (1908) also gives the pronunciation (rītro-) /riːtrəʊ-/ for the first element. The Older Scots past participle form retroactitt recorded in a single example from 1582 perhaps shows an error for retrotract , alteration of retract v.2 (compare retrotraction n.): see Dict. Older Sc. Tongue at retroact.
1. transitive. To act against, counteract. Obsolete. rare.
ΘΚΠ
the world > action or operation > difficulty > opposition > oppose [verb (transitive)]
withgo743
to go again ——OE
withsayc1175
again-goc1275
withsitc1300
thwarta1325
to go against ——a1382
counter1382
repugnc1384
adversea1393
craba1400
gainsaya1400
movec1400
overthwart?a1425
to put (also set) one's face againsta1425
traversea1425
contrairc1425
to take again ——c1425
contraryc1430
to take against ——a1450
opposec1485
again-seta1500
gain?a1500
oppone1500
transverse1532
to come up against1535
heave at1546
to be against1549
encounter1549
to set shoulder against1551
to fly in the face of1553
crossc1555
to cross with1590
countermand1592
forstand1599
opposit1600
thorter1608
obviate1609
disputea1616
obstrigillate1623
contradict1632
avert1635
to set one's hand against1635
top1641
militate1642
to come across ——1653
contrariate1656
to cross upon (or on)1661
shock1667
clash1685
rencounter1689
obtend1697
counteract1708
oppugnate1749
retroact?1761
controvert1782
react1795
to set against ——1859
appose-
?1761 ‘B. Montfichet’ Life & Opinions II. iii. 17 A person's posteriors had been once so retentive of modesty in the royal presence, that the expulsive muscles of a flatus, were counter and retro-acted by the compressive valves of the sphincter ani.
2. intransitive. To react reciprocally or in return; to have a reciprocal effect.
ΚΠ
1795 T. Hussey Let. 19 Feb. in E. Burke Corr. (1969) VIII. 153 They may rally in the House of Peers,—put down the emancipation bill; but be assured the very ghost of that bill would retroact, and put down the House of Peers.
1856 E. B. Browning Aurora Leigh vi. 240 A simple shade or image of the brain, Is merely passive, does not retro-act, Is seen, but sees not.
1879 E. Moore tr. K. R. Hagenbach Hist. Reformation Germany & Switzerland II. xxxiv. 371 Protestantism has promoted those sciences which..implant and cultivate noble and liberal sentiments, and retro-act upon the great domains of moral liberty.
a1985 F. Rossi-Landi Between Signs & Non-signs (1992) i. ii. 28 To believe..that social practice founded itself on a given conception of reality..does not mean that conceptions of reality are deprived of the possibility of retro-acting on social practice.
2002 E. Gualini in G. Cars et al. Urban Governance 37 Collective action becomes an emergent, incremental outcome that may itself retro-act on the conditions for the constitution of new institutional settings.
3.
a. intransitive. To have a retrospective effect or impact.
ΘΚΠ
the world > action or operation > operate [verb (intransitive)] > backwards
retroact1797
the world > action or operation > operate [verb (intransitive)] > in return
respond1600
react?1608
retroact1797
the world > time > relative time > the past > [verb (intransitive)] > operate towards the past
retroact1797
1797 T. Sheridan Compl. Dict. Eng. Lang. (ed. 4) To retroact,..to act backward.
1802 D. Call Rep. Court of Appeals Virginia 2 163 The scire facias..cannot retroact upon a mesne act, where the right has ceased.
1877 Scribner's Monthly Dec. 223/2 That woman could not retroact and touch the memory of Ida. That dear vision remained intact.
1884 E. Bellamy Miss Ludington's Sister xv. 252 An evil past could no more shadow a virtuous present than a virtuous present could retroact to brighten or redeem an ugly past.
1932 Calif. Law Rev. 21 48 The amendment did not retroact to affect appeals pending at the time of its adoption.
2000 Evening Standard (Nexis) 27 Apr. 23 He lied egregiously about his intentions. This big lie has retro-acted on my view of Livingstone.
b. transitive. To extend the scope of (a measure, regulation, etc., or its effects) into the past; to cause to apply retrospectively.
ΚΠ
1900 Ann. Rep. War Dept. (U.S.) I. vi. 279 By direction of the same general its [sc. the budget's] effects were retroacted to the 1st of February.
1964 J. Russell Sanatio in Radice before Council of Trent 140 A dispensation which both convalidated a marriage and retroacted its juridical effects to a moment in the past.
2001 Houston Chron. (Nexis) 4 July 5 The rules kick in on Jan. 1 but are being retroacted to include players attempting to qualify for the PGA Tour in the fall of 2001.

Derivatives

retro'acting adj. (a) that applies retrospectively; (b) reciprocal, reactive.
ΚΠ
1841 Extra Globe (Washington, D.C.) 19 May 16/3 Did he issue retro-acting edicts, and invite spies and informers to testify against their fellow citizens in office, so that they might be removed?
1850 De Bow's Rev. Aug. 126 The individual weight of authority of these legislators..exerts a strong, retro-acting influence upon the people.
1906 Manch. Guardian 7 Mar. 8/3 Fears were entertained of the effect of pressure put on members and of the retro-acting effect of promises, extracted from candidates in moments of agony.
1990 Sunday Oregonian (Portland, Oregon) (Nexis) 11 Feb. b1 If legal, that retroacting clause would prevent the City Council from renaming anything after King without public approval if voters restore the Union Avenue name.
This entry has been updated (OED Third Edition, March 2010; most recently modified version published online June 2022).
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