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DictionaryidesRoman calendar date
noun

ides

YDZ/aɪdz/

The thirteenth or fifteenth day of a month in the ancient Roman calendar.

The Roman calendar places the ides of March on March 15.

An explicitly modern educational reconstruction of an abridged Roman March calendar, with the ides marked at day 15 near the middle of a simple horizontal month strip.
Etymology
idesLatinides

Latin idus named the month's middle calendar marker: the 15th in March, May, July, and October, and the 13th otherwise. Its deeper origin is uncertain, perhaps Etruscan.

In context

Knowledge=fun1:54
Less than a year after Julius Caesar was assassinated on the Ides of March
The Forgotten Magistrate

More examples

  • April 13 is the ides of April in the Roman calendar.
  • In July, the Romans observe the ides on the fifteenth.
  • The inscription dates the dedication to three days before the ides.

Forms

ides