cognizance vs reasoning

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. 

reasoning

noun
  • The deduction of inferences or interpretations from premises, abstract thought, ratiocination; (countable) any instance of this, especially as a process leading to an action, motive. 

  • A Rastafari meeting held for the purposes of chanting, prayer and discussion. 

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