πείθεται πᾶς ἥδιον ἢ βιάζεται (Dio Cassius, Historiae Romanae 8.36.3) → it's always more pleasant to be persuaded than to be forced
undo: P. and V. λύω, λύειν, ἐκλύειν.
unbar: Ar. and V. χαλᾶν, V. διαχαλᾶν.
free: P. and V. λύω, λύειν, ἀφιέναι, ἐκλύειν; see free.
unhand: P. and V. ἀφίεσθαι (gen.), Ar. and V. μεθίεσθαι (gen.).