repulse vs stave off

repulse

verb
  • To reject or rebuff. 

  • To repel or drive back. 

  • To cause revulsion in. 

noun
  • the act of repulsing or the state of being repulsed 

  • refusal, rejection or repulsion 

stave off

verb
  • to prevent something from happening; to obviate or avert 

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