cognizance vs comprehension

cognizance

noun
  • Notice or awareness. 

  • An emblem, badge or device, used as a distinguishing mark by the body of retainers of a royal or noble house. 

  • Jurisdiction. 

comprehension

noun
  • Thorough understanding. 

  • The inclusion of nonconformists within the Church of England. 

  • The totality of intensions, that is, attributes, characters, marks, properties, or qualities, that the object possesses, or else the totality of intensions that are pertinent to the context of a given discussion. 

  • A compact syntax for generating a list in some functional programming languages. 

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