anguish vs compunction

anguish

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

verb
  • To cause to suffer pain. 

  • To suffer pain. 

compunction

noun
  • A pricking of conscience or a feeling of regret, especially one which is slight or fleeting. 

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