παρηβηκέναι

From LSJ

ὀδοῦσι καὶ ὄνυξι καὶ πάσῃ μηχανῇ → tooth and nail | tooth, fang, and claw | in every possible way | by hook or by crook

Source

Greek > English (Woodhouse Verbs Reversed)

(see also: παρηβάω) be past one's prime