aversion vs repellency

aversion

noun
  • An object of dislike or repugnance. 

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

repellency

noun
  • The ability to repel; the characteristic of repelling. 

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