ennui vs satisfaction

ennui

noun
  • A gripping listlessness or melancholia caused by boredom; depression. 

verb
  • To make bored or listless; to weary. 

satisfaction

noun
  • A reparation for an injury or loss. 

  • A fulfilment of a need or desire. 

  • The pleasure obtained by such fulfillment. 

  • A vindication for a wrong suffered. 

  • The source of such gratification. 

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