affliction vs calamity

affliction

noun
  • A state of pain, suffering, distress or agony. 

  • Something which causes pain, suffering, distress or agony. 

calamity

noun
  • The distress that results from some disaster. 

  • An event resulting in great loss. 

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