rainbowed vs varicolored

rainbowed

adj
  • Resembling, involving, or illuminated with a rainbow; patterned with the colours of the rainbow. 

  • Made up of several races or ethnicities; rainbow. 

varicolored

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

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