hardship vs mortify

hardship

verb
  • To treat (a person) badly; to subject to hardships. 

noun
  • Difficulty or trouble; hard times. 

  • A burden, a source of difficulty that could impose a barrier. 

mortify

verb
  • 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. 

  • To gangrene. 

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