delegate vs nuncio

delegate

noun
  • A representative at a conference, etc. 

  • A type of variable storing a reference to a method with a particular signature, analogous to a function pointer. 

  • An appointed representative in some legislative bodies. 

  • A person authorized to act as representative for another; a deputy. 

verb
  • (of a subdomain) to give away authority over a subdomain; to allow someone else to create sub-subdomains of a subdomain of one's own 

  • to authorize someone to be a delegate 

  • to commit a task to someone, especially a subordinate 

nuncio

noun
  • One who bears a message; a messenger. 

  • Any member of any Sejm of the Kingdom of Poland, Polish–Lithuanian Commonwealth, Galicia (of the Austrian Partition), Duchy of Warsaw, Congress Poland, or Grand Duchy of Posen. 

  • The ecclesiastic title of a permanent diplomatic representative of the Roman Catholic Church to a sovereign state or international organization, who is accorded a rank equivalent to an accredited ambassador, and may also be given additional privileges including recognition as Dean in a country's diplomatic corps. 

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