cognizance vs consciousness

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. 

consciousness

noun
  • The state of being conscious or aware; awareness. 

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