Origin: 1555–65; < Latin ex(s)ecrātus (past participle of ex(s)ecrārī to curse), equivalent to ex-ex-1 + secr- (combining form of sacrāre to consecrate; see sacrament) + -ātus-ate1
1560s, from L. execrat-, pp. stem of execrari "to curse," from ex- + sacrare "to devote to" (see sacred). Hence, "to devote off or away; to curse." Related: Execrated; execrating.