Source : Webster's Revised Unabridged Dictionary (1913)

Deconsecrate \De*con"se*crate\, v. t.
   To deprive of sacredness; to secularize. --
   {De*con`se*cra"tion}, n.

Source : WordNet®

deconsecrate
     v : remove the consecration from a person or an object [syn: {desecrate}]
         [ant: {consecrate}]