penitence vs repentance

penitence

noun

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

repentance

noun

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

  • The condition of being penitent. 

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