legate vs tactician

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. 

tactician

noun
  • A person skilled in the planning and execution of tactics. 

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