purpure vs violet

purpure

adj
  • In blazon, of the colour purple. 

noun
  • A purple colour on a coat of arms, represented in engraving by diagonal parallel lines 45 degrees clockwise. 

  • purpure 

violet

adj
  • Having a bluish-purple colour. 

noun
  • A person thought to resemble V. odorata, especially in its beauty and delicacy. 

  • Synonym of onion. 

  • A plant or flower of the genus Viola, especially the fragrant Viola odorata; (inexact) similar-looking plants and flowers. 

  • Clothes and (ecclesiastical) vestments of such a colour. 

  • The characteristic scent of V. odorata. 

  • A bluish-purple colour resembling that of most V. odorata. 

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