cathedral vs unauthorized

cathedral

noun
  • A large or important church building. 

  • A large, impressive, lofty, and/or important building or place of some other kind. 

  • The principal church of an archbishop's/bishop's archdiocese/diocese which contains an episcopal throne. 

  • A large buttressed structure built by certain termites. 

name
  • In certain right-wing conspiracy theories, the mainstream system or establishment of society, held to be liberal or leftist and to be working against the interests of the people or nation, which is both. 

adj
  • Relating to the throne or the see of a bishop. 

unauthorized

adj
  • not having any authority 

  • without official authorization 

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