dissimulation vs kidology

dissimulation

noun
  • The act of concealing the truth; hypocrisy or deception. 

  • Hiding one's feelings or intentions. 

kidology

noun
  • Studied deception. 

  • The art of kidding, teasing mocking. 

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