leap day
An intercalary day in the calendar, esp. that of leap-year, February 29th.
| 1600 Holland Livy xlv. xliv. 1232 This yere leapt, and the leap day was the morrow after the feast Terminalia. 1712 Swift Jrnl. Stella 29 Feb., This is leap-year, and this is leap-day. 1833 Herschel Astron. xiii. 412 The surplus days thus thrown into the reckoning are called intercalary or leap days. 1896 Daily News 22 Jan. 5/4 Rossini was born on February 29 (or ‘leap-day’), 1792. |