† bissextn.

Forms: In Middle English–1500s bisext(e, 1500s ( bisex), bysext.

Etymology: < Latin bi(s)sextus (dies), < bis twice + sextus sixth, the name given to the intercalary day inserted by the Julian calendar every fourth year after the sixth day before the calends of March, or 24th of February.

Obsolete.

The intercalary day in a leap year. Also: = bissextile adj. and n.

ΘΚΠ

the world > time > reckoning of time > [noun] > adjustments in calculations > leap year > intercalary or extra day in

bissext1398

leap day1600

epact1603

bissextile day1708

the world > time > reckoning of time > [noun] > adjustments in calculations > leap year

leap yeara1387

bissext1531

bissextile1581

1398 J. Trevisa tr. Bartholomew de Glanville De Proprietatibus Rerum (1495) ix. iii. 348 The Bisexte is gaderynge of eyghtene houres whyche comyth in thre yeres wyth syxe houres of the fourth yere to make a ful daye..and the yere Bisextilis hath that name.

1531 T. Elyot Bk. named Gouernour i. xxv. sig. Miij Bisext, called the lepe yere.

1618 Sheph. Kal. (1656) ii In four years, there is one Bysext.

This entry has not yet been fully updated (first published 1887; most recently modified version published online March 2022).

单词	bissext
释义	† bissextn. Forms: In Middle English–1500s bisext(e, 1500s ( bisex), bysext. Etymology: < Latin bi(s)sextus (dies), < bis twice + sextus sixth, the name given to the intercalary day inserted by the Julian calendar every fourth year after the sixth day before the calends of March, or 24th of February. Obsolete. The intercalary day in a leap year. Also: = bissextile adj. and n. ΘΚΠ the world > time > reckoning of time > [noun] > adjustments in calculations > leap year > intercalary or extra day in bissext1398 leap day1600 epact1603 bissextile day1708 the world > time > reckoning of time > [noun] > adjustments in calculations > leap year leap yeara1387 bissext1531 bissextile1581 1398 J. Trevisa tr. Bartholomew de Glanville De Proprietatibus Rerum (1495) ix. iii. 348 The Bisexte is gaderynge of eyghtene houres whyche comyth in thre yeres wyth syxe houres of the fourth yere to make a ful daye..and the yere Bisextilis hath that name. 1531 T. Elyot Bk. named Gouernour i. xxv. sig. Miij Bisext, called the lepe yere. 1618 Sheph. Kal. (1656) ii In four years, there is one Bysext. This entry has not yet been fully updated (first published 1887; most recently modified version published online March 2022). < n.1398
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