ἀλλ' ἦν ἅπαντα τεταγμένα νόμων ἐπιταγαῖς → but all their acts were regulated by prescriptions set forth in laws
useful: P. and V. χρήσιμος, χρηστός, σύμφορος, πρόσφορος, Ar. and P. ὠφέλιμος, Ar. and V. ὠφελήσιμος.