blackberry vs lilac

blackberry

noun
  • A fruit-bearing shrub of the aggregate species Rubus fruticosus and some hybrids. 

  • The soft fruit borne by this shrub, formed of a black (when ripe) cluster of drupelets. 

  • The blackcurrant. 

verb
  • To gather or forage for blackberries. 

lilac

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

  • A flower of the lilac shrub. 

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

adj
  • Having a pale purple colour. 

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