fivere

From LSJ

τραχὺς ἐντεῦθεν μελάμπυγός τε τοῖς ἐχθροῖς ἅπασιν → he is a tough black-arse towards his enemies, he is a veritable Heracles towards his enemies

Source

Latin > English (Lewis & Short)

fivere: item (apud Catonem) pro figere, Paul. ex Fest. p. 92, 8 Müll.