πλεονέκτης
Alt. πλεον-έκτης, ου, ὁ,
Etym. = ὁ πλέον ἔχων
1. "one who has or claims more than his due, greedy, grasping, arrogant", Thuc., etc.:—as adj., λόγος πλ. Hdt.; Sup. πλεονεκτίστατος, Xen.
2. πλεονέκτης τῶν πολεμίων "making gain" from their losses, id=Xen.