συντεταμενως

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

Dutch (Woordenboekgrieks.nl)

συντετᾰμενως [συντείνω] adv. van ptc. perf. med.-pass., ingespannen, geconcentreerd, energiek.