λαίειν

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

Greek (Liddell-Scott)

λαίειν: «φθέγγεσθαι» Ἡσύχ.