anguish vs repentance

anguish

noun
  • Extreme pain, either of body or mind; excruciating distress. 

verb
  • To cause to suffer pain. 

  • To suffer pain. 

repentance

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

  • The condition of being penitent. 

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