denial vs denier

denial

noun
  • A defense mechanism involving a refusal to accept the truth of a phenomenon or prospect. 

  • A disownment or disavowal 

  • An assertion of untruth. 

  • Refusal to believe that a problem exists. 

  • Refusal to admit responsibility for wrongdoing. 

  • A refusal or failure to provide or grant something that is requested or desired. 

  • Negationism, denialism of historical facts or accepted interpretation. 

  • The negation in logic. 

denier

noun
  • One who denies the existence of something. 

  • One who denies or forbids something. 

  • An old French coin worth one-twelfth of a sou. 

  • A unit of linear density which indicates the fineness of fiber or yarn, equal to one gram per 9000 meters, used especially to measure or indicate the fineness of hosiery. Originally equal to the weight of a denier coin per 9600 aunes. 

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