ἀμφίταπις
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)
-ιδος, ἡ, = ἀμφιτάπης, Ael. Dion. Fr. 304, Lycon ap. DL. 5.72.
Russian (Dvoretsky)
ἀμφίτᾰπις: ιδος ἡ ковер или покрывало с двухсторонним ворсом Diog. L.