archetypal vs conventional

archetypal

adj
  • Of or pertaining to an archetype. 

conventional

adj
  • Banal, trite, hackneyed, unoriginal or clichéd. 

  • Ordinary, commonplace. 

  • In accordance with a bidding convention, as opposed to a natural bid. 

  • Pertaining to a convention, as in following generally accepted principles, methods and behaviour. 

  • Pertaining to a weapon which is not a weapon of mass destruction. 

  • Making use of synthetic fertilizers and pesticides. 

noun
  • A conventional gilt-edged security, a kind of bond paying the holder a fixed cash payment (or coupon) every six months until maturity, at which point the holder receives the final payment and the return of the principal. 

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