ἀποκάμνειν
From LSJ
Μεγάλοι δὲ λόγοι μεγάλας πληγὰς τῶν ὑπεραύχων ἀποτίσαντες γήρᾳ τὸ φρονεῖν ἐδίδαξαν → The great words of the arrogant pay the penalty by suffering great blows, and teach one to reason in old age
Greek > English (Woodhouse Verbs Reversed)
(see also ἀποκάμνω): faint, flag, be exhausted, be fatigued, be jaded, be overcome, be tired, be weary, grow faint, be worn out