blend vs dissociate

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. 

dissociate

verb
  • To make unrelated; to sever a connection; to separate. 

  • To undergo dissociation. 

  • To part; to stop associating. 

  • To separate compounds into simpler component parts, usually by applying heat or through electrolysis. 

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