truceyoudaoicibaDictYouDict[truce 词源字典]
truce: [13] Historically, truce is simply the plural of the noun version of the adjective true. In Old English this was trēow, which meant ‘faith, pledge’. It was often used in the plural with the same meaning as the singular, and this tendency increased in early Middle English to the point where the singular disappeared altogether. It had meanwhile narrowed down in meaning to a ‘pledge to stop fighting’.
=> true[truce etymology, truce origin, 英语词源]
truce (n.)youdaoicibaDictYouDict
"mutually agreed-upon temporary intermission of hostilities," early 13c., triws, variant of trewes, originally plural of trewe "faith, assurance of faith, covenant, treaty," from Old English treow "faith, truth, fidelity; pledge, promise, agreement, treaty," from Proto-Germanic *treuwaz- (cognates: Old Frisian triuwe, Middle Dutch trouwe, Dutch trouw, Old High German triuwa, German treue, Gothic triggwa "faith, faithfulness"). Related to Old English treowe "faithful" (see true (adj.)). The Germanic word was borrowed into Late Latin as tregua, hence French trève, Italian tregua.