burgomaster
noun
bur·go·mas·ter ˈbər-gə-ˌma-stər 
: the chief magistrate of a town in some European countries : mayor
Example Sentences
Recent Examples on the Web Lavaux is the village’s burgomaster, a position equivalent to mayor or chief magistrate. 
BostonGlobe.com, 5 May 2021
BostonGlobe.com, 5 May 2021 Word History
Etymology
partial modification, partial translation of Dutch burgemeester, from burg town + meester master
First Known Use
1592, in the meaning defined above