reluctance vs repentance

reluctance

noun
  • Unwillingness to do something. 

  • Hesitancy in taking some action. 

  • That property of a magnetic circuit analogous to resistance in an electric circuit. 

repentance

noun
  • A feeling of regret or remorse for doing wrong or sinning. 

  • The condition of being penitent. 

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