mores

From LSJ

ἔργοισι χρηστός, οὐ λόγοις ἔφυν μόνον → a friend in deeds, and not in words alone

Source

Latin > English (Lewis & Short)

mōrēs: um, m., v. mos.

Latin > French (Gaffiot 2016)

mōrēs, um, v. mos.