anguish vs ordeal

anguish

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

verb
  • To cause to suffer pain. 

  • To suffer pain. 

ordeal

noun
  • A painful or trying experience. 

  • The poisonous ordeal bean or Calabar bean 

  • A trial in which the accused was subjected to a dangerous test (such as ducking in water), divine authority deciding the guilt of the accused. 

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