rebuff vs repel

rebuff

verb
  • To refuse; to offer sudden or harsh resistance; to turn down or shut out. 

  • To buff again. 

noun
  • Repercussion, or beating back. 

  • He was surprised by her quick rebuff to his proposal. 

  • A sudden resistance or refusal. 

repel

verb
  • To reject, put off (a request, demand etc.). 

  • To ward off (a malignant influence, attack etc.). 

  • To drive back (an assailant, advancing force etc.). 

  • To cause repulsion or dislike in; to disgust. 

  • To save (a shot). 

  • To force away by means of a repulsive force. 

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