κάρα θερίζειν
From LSJ
Ξένος ὢν ἀκολούθει τοῖς ἐπιχωρίοις νόμοις → Terrae, ubi versaris peregre, obsequere legibus → Als Fremder folge dem Gesetz des Gastlandes
Greek > English (Woodhouse)
behead, decapitate, ax, bring to the block, chop off one's head, cut off the head, cut the head off, decollate, guillotine