anguish vs wretchedness

anguish

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

verb
  • To cause to suffer pain. 

  • To suffer pain. 

wretchedness

noun
  • An unhappy state of mental or physical suffering. 

  • A state of prolonged misfortune, privation, or anguish. 

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