heartswelling vs riveting

heartswelling

adj
  • Rankling in, or swelling, the heart. 

riveting

adj
  • Commanding the attention of spectators. 

noun
  • The act of spreading out and clinching the end, as of a rivet, by beating or pressing. 

  • A set of rivets; rivets collectively. 

  • The act of joining with rivets. 

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