internuncio vs legate

internuncio

noun
  • A diplomatic representative of the Pope ranking below a nuncio. 

  • A messenger or go-between. 

legate

noun
  • A deputy representing the pope, specifically a papal ambassador sent on special ecclesiastical missions. 

  • The deputy of a provincial governor or general in ancient Rome. 

  • An ambassador or messenger. 

verb
  • To leave as a legacy. 

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