administrator vs magistrate

administrator

noun
  • One who administers affairs; one who directs, manages, executes, or dispenses, whether in civil, judicial, political, or ecclesiastical affairs; a manager 

  • A person who manages or settles the estate of an intestate, or of a testator when there is no competent executor; one to whom the right of administration has been committed by competent authority 

  • One who is responsible for software installation, management, information and maintenance of a computer or network 

magistrate

noun
  • A comparable official in medieval or modern institutions. 

  • A master's degree. 

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

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