nonpublic vs privy

nonpublic

adj
  • Not open to the public; not available to or shared by the public; private. 

privy

adj
  • Private, exclusive; not public; one's own. 

  • With knowledge of; party to; let in on. 

noun
  • An outdoor facility for urination and defecation, whether open (latrine) or enclosed (outhouse). 

  • A partaker; one having an interest in an action, contract, etc. to which he is not himself a party. 

  • A lavatory: a room with a toilet. 

  • A toilet: a fixture used for urination and defecation. 

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