dehymenization vs hymenotomy

dehymenization

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

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

hymenotomy

noun
  • The surgical removal or opening of the hymen. 

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