octennialadj.n.

Brit.

/ɒkˈtɛnɪəl/, U.S.

/ɑkˈtɛniəl/

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin octennium , -al suffix¹.

Etymology: < post-classical Latin octennium a period of eight years (5th cent.; < classical Latin octo eight (see octo- comb. form) + annus year: see annals n.) + -al suffix¹; compare -ennial comb. form.

A. adj.

Of or relating to a period of eight years; occurring during, or lasting for, eight years; occurring every eight years.In British Political History used spec. with reference to the Octennial Act of 1768, limiting the duration of the Irish Parliament to eight years.

ΘΚΠ

the world > time > period > year > [adjective] > occurring every specific number of years

quinquennal1532

quinquennial1601

five-yearly1619

centenary1620

septennial1640

triannual1640

triennial1642

septennary1644

sexennial1646

trieterical1646

novennial1656

octennial1656

trieteric1656

quinquennalian1692

quadrenniala1700

biennial1750

sexennary1753

lustral1781

centennial1797

quaternal1813

sextennial1814

septendecennial1834

septemdecenary1843

undecennarya1847

bicentenary1862

bicentennial1883

quadricentennial1889

trigintennial1894

twelve-yearly1906

vigintennial1921

1656 T. Blount Glossographia Octennial, that is done every eight years.

1762 P. Murdoch tr. A. F. Büsching New Syst. Geogr. III. 679 [His] office is octennial.

1769 Ld. Townshend in W. E. H. Lecky Eng. in 18th C. (1882) IV. 386 The Octennial Bill..gave the first blow to the dominion of aristocracy in this kingdom.

1772 S. Whyte Shamrock 307 And, though Ingratitude dispute thy Claim, The Octennial Bill has eternize thy Fame.

1788 J. Madison Federalist Papers lii. 126 Of late octennial parliaments have besides been established.

1847 G. Grote Hist. Greece IV. ii. xxviii. 82 The octennial solemnity in honour of the god.

1865 G. Grote Plato I. iii. 123 An octennial period of octaetêris.

1891 N. Amer. Rev. Jan. 18 The movement began with the Octennial Act, limiting the duration of Parliament.

1981 Christian Sci. Monitor (Nexis) 5 Nov. 22 For republicans this has begun to look like an octennial habit.

1997 Oxf. Compan. Brit. Hist. 190 In 1768 he gave vigorous support to the Octennial Bill, which limited the life of the Irish Parliament.

†B. n.

A period of eight years. Obsolete. rare.

ΘΚΠ

the world > time > period > year > [noun] > period of specific number of years

hendecadOE

a week of yearsa1382

weekc1384

Olympiada1387

lustre1387

yearc1425

millenary1551

prenticeship1553

septenary1576

lustrum1590

quinquennal1590

seventy1590

septimane1603

quinquennie1606

threescore (years) and tena1616

duodecad1621

quinquennium1621

jubilee1643

quadrenniala1646

chiliad1653

septennary1659

septennium1660

triennial1661

millennium1664

tetraëterid1678

octennial1679

duodenary1681

quadrennium1779

septenniad1836

quinquenniad1842

milliad1843

tricentenary1846

triennium1847

vicennium1847

bimillenary1850

lustration1853

sexennium1858

septennate1874

quinquennial1877

pentad1880

sexennate1898

aeon1960

1679 J. Leanerd in E. Ecclestone Noah's Flood To Ecclestone sig. A I'de an Octen'ial spend to reach the height.

Derivatives

ocˈtennially adv. every eight years.

ΘΚΠ

the world > time > period > year > [adverb] > every specific number of years

triennially1689

quinquennially1727

septennially1729

biennially1775

quadrennially1785

sexennially1824

millennially1851

octennially1854

decennially1874

1854 Webster's Amer. Dict. Eng. Lang. Octennially, once in eight years.

This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).

单词	octennial
释义	octennialadj.n. Brit. /ɒkˈtɛnɪəl/, U.S. /ɑkˈtɛniəl/ Origin: A borrowing from Latin, combined with an English element. Etymons: Latin octennium , -al suffix¹. Etymology: < post-classical Latin octennium a period of eight years (5th cent.; < classical Latin octo eight (see octo- comb. form) + annus year: see annals n.) + -al suffix¹; compare -ennial comb. form. A. adj. Of or relating to a period of eight years; occurring during, or lasting for, eight years; occurring every eight years.In British Political History used spec. with reference to the Octennial Act of 1768, limiting the duration of the Irish Parliament to eight years. ΘΚΠ the world > time > period > year > [adjective] > occurring every specific number of years quinquennal1532 quinquennial1601 five-yearly1619 centenary1620 septennial1640 triannual1640 triennial1642 septennary1644 sexennial1646 trieterical1646 novennial1656 octennial1656 trieteric1656 quinquennalian1692 quadrenniala1700 biennial1750 sexennary1753 lustral1781 centennial1797 quaternal1813 sextennial1814 septendecennial1834 septemdecenary1843 undecennarya1847 bicentenary1862 bicentennial1883 quadricentennial1889 trigintennial1894 twelve-yearly1906 vigintennial1921 1656 T. Blount Glossographia Octennial, that is done every eight years. 1762 P. Murdoch tr. A. F. Büsching New Syst. Geogr. III. 679 [His] office is octennial. 1769 Ld. Townshend in W. E. H. Lecky Eng. in 18th C. (1882) IV. 386 The Octennial Bill..gave the first blow to the dominion of aristocracy in this kingdom. 1772 S. Whyte Shamrock 307 And, though Ingratitude dispute thy Claim, The Octennial Bill has eternize thy Fame. 1788 J. Madison Federalist Papers lii. 126 Of late octennial parliaments have besides been established. 1847 G. Grote Hist. Greece IV. ii. xxviii. 82 The octennial solemnity in honour of the god. 1865 G. Grote Plato I. iii. 123 An octennial period of octaetêris. 1891 N. Amer. Rev. Jan. 18 The movement began with the Octennial Act, limiting the duration of Parliament. 1981 Christian Sci. Monitor (Nexis) 5 Nov. 22 For republicans this has begun to look like an octennial habit. 1997 Oxf. Compan. Brit. Hist. 190 In 1768 he gave vigorous support to the Octennial Bill, which limited the life of the Irish Parliament. †B. n. A period of eight years. Obsolete. rare. ΘΚΠ the world > time > period > year > [noun] > period of specific number of years hendecadOE a week of yearsa1382 weekc1384 Olympiada1387 lustre1387 yearc1425 millenary1551 prenticeship1553 septenary1576 lustrum1590 quinquennal1590 seventy1590 septimane1603 quinquennie1606 threescore (years) and tena1616 duodecad1621 quinquennium1621 jubilee1643 quadrenniala1646 chiliad1653 septennary1659 septennium1660 triennial1661 millennium1664 tetraëterid1678 octennial1679 duodenary1681 quadrennium1779 septenniad1836 quinquenniad1842 milliad1843 tricentenary1846 triennium1847 vicennium1847 bimillenary1850 lustration1853 sexennium1858 septennate1874 quinquennial1877 pentad1880 sexennate1898 aeon1960 1679 J. Leanerd in E. Ecclestone Noah's Flood To Ecclestone sig. A I'de an Octen'ial spend to reach the height. Derivatives ocˈtennially adv. every eight years. ΘΚΠ the world > time > period > year > [adverb] > every specific number of years triennially1689 quinquennially1727 septennially1729 biennially1775 quadrennially1785 sexennially1824 millennially1851 octennially1854 decennially1874 1854 Webster's Amer. Dict. Eng. Lang. Octennially, once in eight years. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022). < adj.n.1656
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