convulse (v.)youdaoicibaDictYouDict[convulse 词源字典]
1640s, transitive; 1680s, intransitive; from Latin convulsus, past participle of convellere (transitive only) "to pull away, to pull this way and that, wrench," hence "to weaken, overthrow, destroy" (see convulsion). Related: Convulsed (1630s); convulsing.[convulse etymology, convulse origin, 英语词源]