ἀποπαλμός
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)
ὁ, A rebounding, Epicur.Ep.1p.8U.
German (Pape)
[Seite 318] ὁ. das Abprallen, Zurückspringen, Epicur. bei Diog. L. 10, 44.
Greek (Liddell-Scott)
ἀποπαλμός: ὁ, ἡ πρὸς τὰ ὀπίσω ἐκπήδησις, Ἐπίκουρ. Παρὰ Διογ. Λ. 10. 44.
Spanish (DGE)
-οῦ, ὁ
rebote de los átomos, Epicur.Ep.[2] 44, Fr.[156].
Russian (Dvoretsky)
ἀποπαλμός: ὁ отскакивание (Epicur. ap. Diog. L.).