Mnester

ἀρκετὸν τῇ ἡμέρᾳ ἡ κακία αὐτῆς → sufficient unto the day is the evil thereof, each day has enough trouble of its own, there is no need to add to the troubles each day brings (Matthew 6:34)

Latin > English (Lewis & Short)

Mnēster: ēris, m.,
I a Roman surname: M. Lepidus Mnester, a pantomime, favorite of Caligula, Suet. Calig. 36; 55; 57.