τραχὺς ἐντεῦθεν μελάμπυγός τε τοῖς ἐχθροῖς ἅπασιν → he is a tough black-arse towards his enemies, he is a veritable Heracles towards his enemies
prōtentus: a, um, Part. and
I P.a., from protendo.
prōtentus, a, um, part. de protendo || adjt, protentior Sol. 30, 9, plus allongé, plus long.