nones noun pl. (treated as sing. or pl.). [nǝʊnz] LME.
[In sense 1 from Old & mod. French from Latin nonas use as noun of fem. accus. pl. of nonus ninth, from novem nine. In sense 2 from (the same root as) NONE noun + -S¹, after matins, lauds, vespers, etc.]
1. The ninth day (by inclusive reckoning) before the ides in the ancient Roman calendar; the 7th of March, May, July, and October, and the 5th of the other months. LME.

2. Ecclesiastical. The fifth of the daytime canonical hours of prayer, orig. appointed for the ninth hour of the day (about 3 p.m.); the office appointed for this hour. E18.

[TahlilGaran] English Dictionary ▲