illustrate vs mix up

illustrate

verb
  • To clarify something by giving, or serving as, an example or a comparison. 

  • To provide a book or other publication with pictures, diagrams or other explanatory or decorative features. 

mix up

verb
  • To confuse or reverse. 

  • To become involved with, especially socially or romantically. 

  • To prepare something from ingredients that are mixed. 

  • To shuffle. 

  • To combine thoroughly. 

  • To mix or blend thoroughly and completely. 

noun
  • A mix, blend, or variety. 

  • A confusion or reversal. 

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