cannibal vs ogress

cannibal

noun
  • An organism which eats others of its own species or kind, especially a human who eats human flesh. 

ogress

noun
  • A fierce, unfriendly woman. 

  • A roundel sable. 

  • A female ogre. 

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