engrossment vs memorization

engrossment

noun
  • The state of being engrossed; concentration or preoccupation. 

  • The fact or instance of preparing the final draft legal document for execution or completion. 

  • Such document that has not yet been executed or completed. 

memorization

noun
  • The act of committing something to memory or memorizing. 

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