contentedness vs contentment

contentedness

noun
  • The state of being contented 

contentment

noun
  • The state or degree of being contented or satisfied. 

  • happiness in one's situation; satisfaction 

  • The neurophysiological experience of satisfaction and being at ease in one's situation, body, and/or mind. 

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