betraymentrare.|bɪˈtreɪmənt| [f. as prec. + -ment.] = Betrayal. 1548Udall, etc. Erasm. Par. Matt. xxvii. 4 (R.) Confessing him to be innocent, whose betraiment they had bought.1863J. Coleman in Spurgeon Treas. Dav.Ps. lv, Betrayment of the Messiah by one of the twelve.