blend vs subsume

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. 

subsume

verb
  • To place (any one cognition) under another as belonging to it; to include or contain something else. 

  • To consider an occurrence as part of a principle or rule; to colligate 

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