Τὸ μανθάνειν δ' ἥδιστον εὖ λέγοντος, εἰ κέρδος λέγοι → It is the sweetest thing to learn from one speaking well, if they speak profitably
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.).