defiance vs penitence

defiance

noun
  • A challenging attitude or behaviour; challenge. 

  • The feeling, or spirit of being defiant. 

  • Open or bold resistance to or disregard for authority, opposition, or power. 

penitence

noun
  • The condition of being penitent; a feeling of regret or remorse for doing wrong or sinning. 

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