backroom vs polity

backroom

noun
  • A room near the rear of a premises, especially one that is only accessible to a privileged few and can be used as an inconspicuous meeting place. 

adj
  • Characterized by secrecy or anonymity. 

  • Of, relating to, or happening in a backroom. 

polity

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

  • A politically organized unit; a state. 

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