lilac vs sanguine

lilac

adj
  • Having a pale purple colour. 

noun
  • A flower of the lilac shrub. 

  • A pale purple color, the color of some lilac flowers. 

  • A large shrub of the genus Syringa, especially Syringa vulgaris, bearing white, pale-pink, or purple flowers. 

sanguine

adj
  • Having the colour of blood; blood red. 

  • Characterized by abundance and active circulation of blood. 

  • Anticipating the best; optimistic; confident; full of hope. 

  • Warm; ardent. 

verb
  • To stain with blood; to impart the colour of blood to; to ensanguine. 

noun
  • A tincture, seldom used, of a blood-red colour (not to be confused with murrey). 

  • Red crayon. 

  • Blood colour; red. 

  • Bloodstone. 

  • Anything of a blood-red colour, as cloth. 

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