judicature vs magistracy

judicature

noun
  • Judges collectively; a court or group of courts; the judiciary. 

  • The administration of justice by judges and courts; judicial process. 

  • The office or authority of a judge; jurisdiction. 

magistracy

noun
  • The collective body of magistrates. 

  • The dignity or office of a magistrate. 

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