hero vs paladin

hero

noun
  • Somebody who possesses great bravery and carries out extraordinary or noble deeds. 

  • The eye-catching top portion of a web page, sometimes including a hero image; the portion above the fold. 

  • The product chosen from several candidates to be photographed, as in food advertising, or with props used in a movie. 

  • A role model. 

  • The protagonist in a work of fiction. 

  • A large sandwich made from meats and cheeses; a hero sandwich. 

  • The current player, especially an hypothetical player for example and didactic purposes. Compare: villain (“any opponent player”). Not to be confused with hero call (“a weak call against a supposed bluff”). 

paladin

noun
  • A defender or advocate of a noble cause. 

  • Any of the twelve Companions of the court of Emperor Charlemagne. 

  • A heroic champion, especially a knight. 

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