refusal vs repulsion

refusal

noun
  • The act of refusing. 

  • Depth or point at which well or borehole drilling cannot continue. 

repulsion

noun
  • The act of repelling or the condition of being repelled. 

  • An extreme dislike of something, or hostility to something. 

  • The repulsive force acting between bodies of the same electric charge or magnetic polarity. 

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