anguish vs despair

anguish

verb
  • To suffer pain. 

  • To cause to suffer pain. 

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

despair

verb
  • To cause to despair. 

  • To be hopeless; to have no hope; to give up all hope or expectation. 

noun
  • That which causes despair. 

  • Loss of hope; utter hopelessness; complete despondency. 

  • That which is despaired of. 

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