burghmaster vs warrant officer

burghmaster

noun
  • An officer who directs and lays out the meres or boundaries for the workers. 

  • A burgomaster. 

warrant officer

noun
  • An officer assigned to execute warrants and other writs. 

  • An officer holding rank by virtue of a warrant rather than a commission. 

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