premotion (n.)youdaoicibaDictYouDict[premotion 词源字典]
1640s, from medical Latin praemotionem (nominative praemotio), noun of action from past participle stem of Late Latin praemovere, from prae- (see pre-) + movere "to move" (see move (v.)).[premotion etymology, premotion origin, 英语词源]