disdain vs pshaw

disdain

verb
  • To regard (someone or something) with strong contempt. 

noun
  • A feeling of contempt or scorn. 

pshaw

verb
  • To express disgust or contempt by saying "pshaw". 

intj
  • Indicating disapproval, scoffery, irritation, impatience or disbelief. 

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