motivation vs obsessedness

motivation

noun
  • Something which motivates. 

  • A research rating that measures how the rational and emotional elements of a commercial affect consumer intention to consider, visit, or buy something. 

  • The action of motivating. 

  • Willingness of action especially in behavior. 

  • An incentive or reason for doing something. 

obsessedness

noun
  • The quality of being obsessed; obsession. 

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