dispassion vs disregard

dispassion

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

disregard

noun
  • The act or state of deliberately not paying attention or caring about; misregard. 

verb
  • To ignore; pay no attention to. 

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