engross vs entertain

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. 

entertain

verb
  • To amuse (someone); to engage the attention of agreeably. 

  • To have someone over at one's home for a party or visit. 

  • To receive and take into consideration; to have a thought in mind. 

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