changeable vs rainbowed

changeable

adj
  • Capable of camouflaging itself by changing colour. 

  • Capable of being changed. 

  • Subject to sudden or frequent changes. 

rainbowed

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

  • Made up of several races or ethnicities; rainbow. 

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