foretoken vs prognostic

foretoken

noun
  • A prognostic; a premonitory sign; warning or presentiment. 

verb
  • To betoken beforehand; prognosticate; foreshadow; give warning of; presage. 

prognostic

noun
  • prognosis 

  • One who predicts the future. 

  • A sign by which a future event may be known or foretold. 

  • A prediction of the future. 

adj
  • Of, pertaining to or characterized by prognosis or prediction. 

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