ὄξινος
From LSJ
ἔνδον γὰρ ἁνὴρ ἄρτι τυγχάνει, κάρα στάζων ἱδρῶτι καὶ χέρας ξιφοκτόνους → yes, the man is now inside, his face and hands that have slaughtered with the sword dripping with sweat
English (LSJ)
v. ὀξίνης.
Greek (Liddell-Scott)
ὄξινος: -η, -ον, ξινός, «ὄμφακες: τὰ ἄωρα τῶν βοτρύων καὶ ὄξινα» Α. Β. 53. 10.