acedia vs dispassion

acedia

noun
  • Apathy; a lack of care or interest; indifference. 

  • Spiritual or mental sloth. 

  • Boredom. 

dispassion

noun
  • Freedom from passion; the absence of passion; an undisturbed state; apathy. 

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