ἀκύμων
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
English (LSJ)
(A), [ῡ], ον, gen. ονος, (κῦμα)
A = ἀκύμαντος, Pi.Fr.235, A.Ag.566; θάλασσα Ar.Fr.708; ἀ. πομπὰ σιγώντων ἀνέμων E.Fr.773.39 (Pap.); γαλήνη Ph.1.680; ἀήρ Plu.2.722e; οὐρανός prob. in Plot.5.1.2: metaph., βίος Plu.2.8a.
ἀκύμ-ων (B), [ῡ], ον, gen. ονος, (κυέω)
A without fruit, barren, of women, E.Andr.158; of the earth, Moschio Trag.8.