anguish vs repining

anguish

noun

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

verb

  • To cause to suffer pain. 

  • To suffer pain. 

repining

noun

  • The act of fretting or feeling discontent or of murmuring. 

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