ὑφίεσθαι

From LSJ

λίγεια μινύρεται θαμίζουσα μάλιστ' ἀηδών → the sweet-voiced nightingale mourns constantly, the sweet-voiced nightingale most loves to warble

Source

Greek > English (Woodhouse Verbs Reversed)

(see also ὑφίημι): abate, shorten sail, become humble, tone down