essay vs passivity

essay

verb
  • To move forth, as into battle. 

noun
  • A written composition of moderate length, exploring a particular issue or subject. 

  • A proposed design for a postage stamp or a banknote. 

passivity

noun
  • A lack of initiative. 

  • The state of being passive. 

  • Submissiveness. 

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