rebuff vs salutation

rebuff

noun
  • Repercussion, or beating back. 

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

  • A sudden resistance or refusal. 

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

  • To buff again. 

salutation

noun
  • A greeting, salute, or address; a hello. 

  • The act of greeting. 

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