disdain vs hardheartedness

disdain

noun
  • A feeling of contempt or scorn. 

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

hardheartedness

noun
  • The state of being hardhearted. 

  • A hardhearted thought or act. 

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