magistrate vs recorder

magistrate

noun
  • A judicial officer with limited authority to administer and enforce the law. A magistrate's court may have jurisdiction in civil or criminal cases, or both. 

  • A comparable official in medieval or modern institutions. 

  • A master's degree. 

  • A high official of the state or a municipality in ancient Greece or Rome. 

recorder

noun
  • A judge in a municipal court. 

  • A musical instrument of the woodwind family; a type of fipple flute, a simple internal duct flute. 

  • An apparatus for recording; a device which records. 

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