guardian vs tutelary

guardian

noun
  • Someone who guards, watches over, or protects. 

  • A superior in a Franciscan monastery. 

  • A person legally responsible for a minor (in loco parentis). 

  • A person legally responsible for an incompetent person. 

  • A major or final enemy; boss. 

tutelary

noun
  • A deity or spirit serving as a guardian or protector of a place, person, culture, etc.; a tutelar, a tutelary deity. 

adj
  • Relating to guardianship or protection. 

  • Having the qualities of a tutor. 

  • Of or pertaining to a guardian. 

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