mayor vs syndic

mayor

noun
  • The chief executive of the municipal government of a city, borough, etc., formerly (historical) usually appointed as a caretaker by European royal courts but now usually appointed or elected locally. 

  • A local VIP, a muckamuck or big shot reckoned to lead some local group. 

  • Synonym of mair, various former officials in the Kingdom of Scotland. 

  • A largely ceremonial position in some municipal governments that presides over the city council while a contracted city manager holds actual executive power. 

syndic

noun
  • A government official having different duties depending on the country; also, a magistrate, especially one of the Chief Magistrates of Geneva, Switzerland. 

  • An agent of a corporation, or of any body of people engaged in a business enterprise; specifically, in the University of Cambridge, a member of the senate appointed to carry out specific duties. 

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