adulator vs doter

adulator

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

doter

noun
  • Synonym of dotard (“one who dotes on another, showing excessive fondness”) 

  • Synonym of dotard (“old person with impaired intellect”) 

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