adjure vs conjure

adjure

verb
  • To earnestly appeal to or advise; to charge solemnly. 

  • To issue a formal command. 

conjure

verb
  • To evoke. 

  • To imagine or picture in the mind. 

  • To perform magic tricks. 

  • To summon (a devil, etc.) using supernatural power. 

noun
  • The practice of magic; hoodoo; conjuration. 

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