chromatic vs lilac

chromatic

adj
  • Brightly coloured; colourful, vivid. 

  • One of three types of tetrachord (the others being the diatonic and enharmonic), with an interval between half and four-fifths of the total interval of a tetrachord. 

  • Having the capacity to separate spectral colours by refraction. 

  • Relating to or using notes not belonging to the diatonic scale of the key in which a passage of music is written. 

  • Characterized or caused by, or relating to, colour or hue. 

  • Relating to chromatin (“a complex of DNA, RNA, and proteins within the cell nucleus out of which chromosomes condense during cell division”). 

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. 

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