polychromatic vs varicolored

polychromatic

adj
  • Showing a variety, or a change, of colours; having many colours; multicoloured. 

  • Composed of more than one wavelength. 

varicolored

adj
  • Having a variety of colors; variegated or motley. 

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