blend vs disperse

blend

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

  • To be mingled or mixed. 

noun
  • A mixture of two or more things. 

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

disperse

verb
  • To scatter in different directions. 

  • To break up and disappear; to dissipate. 

  • To disseminate. 

  • To separate rays of light, etc., according to wavelength; to refract. 

  • To distribute throughout. 

adj
  • Scattered or spread out. 

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