gratification vs reassuring

gratification

noun
  • A gratuity; a reward. 

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

  • A feeling of pleasure; satisfaction. 

reassuring

noun
  • reassurance 

adj
  • That reassures; causing comfort or confidence. 

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