violence (n.)youdaoicibaDictYouDict[violence 词源字典]
late 13c., "physical force used to inflict injury or damage," from Anglo-French and Old French violence (13c.), from Latin violentia "vehemence, impetuosity," from violentus "vehement, forcible," probably related to violare (see violation). Weakened sense of "improper treatment" is attested from 1590s.[violence etymology, violence origin, 英语词源]