magistrate vs notary public

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. 

notary public

noun
  • An officer who can administer oaths and statutory declarations, witness and authenticate documents and perform certain other acts varying from jurisdiction to jurisdiction. 

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