deaconess vs guardian

deaconess

noun
  • The nun in charge of the altar in a convent. 

  • A female servant in the early Christian church. 

  • One of an order of women in some Protestant churches who nurse the sick and tend the poor. 

  • A female deacon (Anglican). 

guardian

noun
  • A superior in a Franciscan monastery. 

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

  • A person legally responsible for an incompetent person. 

  • Someone who guards, watches over, or protects. 

  • A major or final enemy; boss. 

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