dissimulation vs invention

dissimulation

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

  • Hiding one's feelings or intentions. 

invention

noun
  • The act of inventing. 

  • Something invented. 

  • The capacity to invent. 

  • A small, self-contained composition, particularly those in J.S. Bach’s Two- and Three-part Inventions. 

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