νεανιεύεσθαι
From LSJ
Greek > English (Woodhouse Verbs Reversed)
(see also νεανιεύομαι): act impulsively, be hasty in temper, be petulant, play pranks, play the gallant, play youthful pranks
(see also νεανιεύομαι): act impulsively, be hasty in temper, be petulant, play pranks, play the gallant, play youthful pranks