lilac vs mahogany

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. 

mahogany

adj
  • Having the colour of mahogany; dark reddish-brown. 

  • Made of mahogany. 

noun
  • Any of the trees from which such wood comes. 

  • A reddish-brown color, like that of mahogany wood. 

  • mahogany 

  • A Cornish drink made from gin and treacle. 

  • The wood of any of various tropical American evergreen trees, of the genus Swietenia, mostly used to make furniture. 

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