Source : Webster's Revised Unabridged Dictionary (1913)

Execration \Ex`e*cra"tion\, n. [L. execratio, exsecratio: cf. F.
   ex['e]cration.]
   1. The act of cursing; a curse dictated by violent feelings
      of hatred; imprecation; utter detestation expressed.

            Cease, gentle, queen, these execrations. --Shak.

   2. That which is execrated; a detested thing.

            Ye shall be an execration and . . . a curse. --Jer.
                                                  xlii. 18.

   Syn: See {Malediction}.

Source : WordNet®

execration
     n 1: hate coupled with disgust [syn: {abhorrence}, {abomination},
           {detestation}, {loathing}, {odium}]
     2: an appeal to some supernatural power to inflict evil on
        someone or some group [syn: {condemnation}, {curse}]
     3: the object of cursing or detestation; that which is
        execrated