ἀπογιγνώσκειν

From LSJ

γέλως ἄκαιρος κλαυμάτων παραίτιος → ill-timed laughter causes tears (Menander)

Source

Greek > English (Woodhouse Verbs Reversed)

(see also ἀπογιγνώσκω): despair of, rule out of court