conjure up vs imagine

conjure up

verb
  • To generate (an image or an idea) in one's mind. 

  • To create or produce something, seemingly magically. 

  • To call up or command a spirit or devil by an incantation. 

imagine

verb
  • To form a mental image of something; to envision or create something in one's mind. 

  • to assume 

  • to use one's imagination 

  • To believe in something created by one's own mind. 

  • to conjecture or guess 

  • Used to mock some idea. 

noun
  • A short fanfic or prompt placing a reader insert in a novel scenario with a character or celebrity. 

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