noetic vs retrospective

noetic

adj
  • Of or pertaining to the mind or intellect. 

  • Originating in or apprehended by reason. 

noun
  • The science of the intellect. 

  • A purely intellectual entity. 

retrospective

adj
  • Of, relating to, or contemplating the past. 

  • Affecting or influencing past things; retroactive. 

  • Looking backwards. 

noun
  • An exhibition of works from an extended period of an artist's activity. 

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