first minister vs legate

first minister

noun
  • The principal minister of a ruler or state. 

  • A leader of a devolved government such as Scotland, Wales, or Northern Ireland. 

  • The prime minister or a provincial or territorial premier. 

legate

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

  • An ambassador or messenger. 

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

verb
  • To leave as a legacy. 

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