commotion (n.)
late 14c., from Middle French commocion "violent motion, agitation" (12c., Modern French commotion), from Latin commotionem (nominative commotio) "violent motion, agitation," noun of action from past participle stem of commovere "to move, disturb," from com- "together," or "thoroughly" (see com-) + movere "to move" (see move (v.)).