war: [12] The word war was acquired from werre, the northern dialect form of Old French guerre. This in turn came from prehistoric Germanic *werra ‘strife’, which was formed from the base *wers- (source also of English worse and German wirren ‘confuse’). Warrior [13] is from the Old Northern French derivative werreieor. The diminutive of guerra, the Spanish equivalent of French guerre, gave English guerilla. => guerilla[war etymology, war origin, 英语词源]