Source : Webster's Revised Unabridged Dictionary (1913)

Anathematization \A*nath`e*ma*ti*za"tion\, n. [LL.
   anathematisatio.]
   The act of anathematizing, or denouncing as accursed;
   imprecation. --Barrow.

Source : WordNet®

anathematization
     n : the formal act of pronouncing (someone or something)
         accursed [syn: {anathematisation}]