polychromate vs sordid

polychromate

adj
  • Composed of many colours 

noun
  • A salt or ion composed of multiple chromate groups 

sordid

adj
  • Of a dull colour. 

  • Morally degrading. 

  • Dirty or squalid. 

  • Distasteful, ignoble, vile, or contemptible. 

  • Grasping; stingy; avaricious. 

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