legislature vs polity

legislature

noun
  • A governmental body with the power to make, amend and repeal laws. 

  • The legislative assembly of a province or territory, as opposed to the federal parliament. 

  • A legislative building. 

polity

noun
  • An organizational structure of the government of a state, church, etc. 

  • A politically organized unit; a state. 

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