assizes vs authorization

assizes

noun
  • A trial or hearing before such a court. 

  • The regional courts of Great Britain, which were replaced by the Crown Courts in 1971. 

authorization

noun
  • (A document giving) formal sanction, permission or warrant. 

  • Permission. 

  • Permission, possibly limited, to spend funds for a specific budgetary purpose. 

  • An act of authorizing. 

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