aversion vs propensity

aversion

noun
  • An object of dislike or repugnance. 

  • Opposition or repugnance of mind; fixed dislike often without any conscious reasoning. 

propensity

noun
  • An inclination, disposition, tendency, preference, or attraction. 

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