expurigo

From LSJ

κέρκος τῇ ἀλώπεκι μαρτυρεῖ → you can tell a fox by its tail, small traits give the clue to the character of a person

Source

Latin > French (Gaffiot 2016)

expūrĭgō, v. expurgo : *Pl. Capt. 620 ; Mil. 497.

Latin > German (Georges)

expūrigo, s. ex-pūrgo.