gangrene vs mortify

gangrene

verb
  • To be affected with gangrene. 

  • To produce gangrene in. 

  • To corrupt; To cause to become degenerate. 

noun
  • The necrosis or rotting of flesh, usually caused by lack of blood supply. 

  • A damaging or corrupting influence. 

mortify

verb
  • To gangrene. 

  • To embarrass, to humiliate. To injure one's dignity. 

  • To grant in mortmain. 

  • To discipline (one's body, appetites etc.) by suppressing desires; to practise abstinence on. 

  • To lose vitality. 

  • To be subdued. 

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