enjoyment vs gratification

enjoyment

noun
  • An activity that gives pleasure. 

  • The exercise of a legal right. 

  • The condition of enjoying anything. 

  • An enjoyable state of mind. 

gratification

noun
  • A feeling of pleasure; satisfaction. 

  • The act of gratifying or pleasing, either the mind, or the appetite or taste. 

  • A gratuity; a reward. 

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