custody vs superintendency

custody

noun
  • An area under the jurisdiction of a custos within the Order of Friars Minor. 

  • Temporary possession or care of somebody else's property. 

  • The state of being imprisoned or detained, usually pending a trial. 

  • The legal right to take care of something or somebody, especially children. 

superintendency

noun
  • The condition of being a superintendent 

  • The act of superintending 

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