engross vs rivet

engross

verb
  • To completely engage the attention of. 

  • To write (a document) in large, aesthetic, and legible lettering; to make a finalized copy of. 

  • To monopolize; to concentrate (something) in the single possession of someone, especially unfairly. 

rivet

verb
  • To command the attention of. 

  • To attach or fasten parts by using rivets. 

  • To make firm or immovable. 

  • To install rivets. 

noun
  • Any fixed point or certain basis. 

  • A cylindrical mechanical fastener that attaches multiple parts together by fitting through a hole and deforming the head(s) at either end. 

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