1. The fifth day of the months January, february, April, june, august, september, november, and december, and the seventh day of march, May, july, and october. The nones were nine days before the ides, reckoning inclusively, according to the roman method.
Origin: L. Nonae, so called because it was the ninth day before the ides, fr. Nonus ninth, from novem nine. See Nine, Nones, 2, Noon.