defilement vs dehymenization

defilement

noun
  • The state of being defiled. 

  • The act of defiling. 

  • The protection of the interior walls of a fortification from enfilading fire, as by covering them, or by a high parapet on the exposed side. 

dehymenization

noun
  • The act of deflowering; a venereal depriving of the hymen, and hence, pucelage; defloration. 

  • The surgical or gynecological removal of the hymen; hymenotomy. 

How often have the words defilement and dehymenization occurred in a corpus of books? (source: Google Ngram Viewer )