blend vs polychromate

blend

noun
  • A mixture of two or more things. 

  • A word formed by combining two other words; a grammatical contamination, portmanteau word. 

verb
  • To be mingled or mixed. 

  • To mingle; to mix; to unite intimately; to pass or shade insensibly into each other. 

polychromate

noun
  • A salt or ion composed of multiple chromate groups 

adj
  • Composed of many colours 

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