(in the ancient Roman calendar) a day falling roughly in the middle of each month (the 15th day of March, May, July, and October, and the 13th of other months) from which other dates were calculated.
- ‘The character who seems most conscious that the ides of March falls within Lent is Brutus, especially in his account of the manner in which the assassination should be conducted.’
- ‘The received date of Christ's crucifixion was 25 March - hence the year number changed on that day - and 25 March by the Gregorian calendar was 15 March Julian, the ides.’
- ‘Madness, since the ides of Roman times, comes in March.’
- ‘But this same day must end that work the ides of March begun; and whether we shall meet again I know not.’
- ‘She was born on the ides of March in Springfield, Illinois, to Charles William and Ella Letitia Merriweather Post.’
Late Old English from Old French, from Latin idus (plural), of unknown origin.