custody vs reassurance

custody

noun
  • 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. 

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

reassurance

noun
  • Reinsurance. 

  • The act of confirming someone's opinion or impression. 

  • The feeling of being reassured, of having confidence restored, of having apprehensions dispelled. 

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