ides
plural of ide
Noun form of, plural
- plural of ide
Origin
See ide.
Noun capitalized, historical
- The notional full-moon day of a Roman month, occurring on the 15th day of the four original 31-day months (March, May, Quintilis or July, and October) and on the 13th day of all other months.
- Þa monðas þe habbað iiii nonas æfter kalendas... habbað to idus xiii dagas and to ii kalendas eahtatyne. Those months that have 4 nones after the kalends... have 13 days to the ides and eighteen to the second kalends. -...
- The Roman Month its several days divides By reckoning backwards, Calends, Nones, and Ides. - 1679, J. Moxon, Mathematics made Easie, page 26:
- For the modern reader of Latin the most irritating pecularity of this system of dating is that the days after the Ides of any month carry the name of the following month... Another trap for the unwary lies in the fact...
Origin
From Middle English ides, idus, from Anglo-Norman and Old French ides, from Latin īdūs, a fourth-declension plurale tantum, from the Latin practice of treating most recurring calendrical days as plurals. The Latin term is cognate with Oscan eiduis, both perhaps deriving from an unknown Etruscan term. Middle English and Old French also used the singular form ide.