aspiration vs passivity

aspiration

noun
  • The act of aspiring or ardently desiring; an ardent wish or desire, chiefly after what is elevated or spiritual (with common adjunct adpositions being to and of). 

  • The action of aspirating. 

  • A burst of air that follows the release of some consonants. 

passivity

noun
  • A lack of initiative. 

  • The state of being passive. 

  • Submissiveness. 

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