judiciary vs magistracy

judiciary

noun

  • The collective body of judges, justices, etc. 

  • The court system, inclusive of clerical staff, etc. 

adj

  • Judicial. 

magistracy

noun

  • The collective body of magistrates. 

  • The dignity or office of a magistrate. 

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