俊
シュン, すぐる, とし
sagacious, genius, excellence
JLPT1 G7 S9 F1007
夋 is as per 允 (run) + 夂 leg/foot pointed downward → stop running and stand erect. Hesitant is an associated meaning (← immobile with indecision). To 夋# (stand erect), 俊 adds 人 person → person of *quality,* *genius* and/or *excellence* (← superior posture).
[Full Kanji Etymology List]