adulator vs backscratcher

adulator

noun
  • One who lavishes excessive praises or flattery; one who adulates. 

backscratcher

noun
  • A long slender rod with a rake-like device on one end, sometimes in the form of a human hand, designed to let a person scratch their own back. 

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