Word Origin & History
early 13c., triws, variant of trewes, originally plural of trewe "faith, assurance of faith, covenant, treaty," from O.E. treow "faith, treaty," from P.Gmc. *trewwo (cf. O.Fris. triuwe, M.Du. trouwe, Du. trouw, O.H.G. triuwa, Ger. treue, Goth. triggwa "faith, faithfulness"). Related to O.E. treowe "faithful"
). The Germanic word was borrowed into L.L. as tregua, hence Fr. trève, It. tregua. Trucial States, the pre-1971 name of the United Arab Emirates, is attested from 1891, in ref. to the 1835 maritime truce between Britain and the Arab sheiks of Oman.