collocate vs equate

collocate

verb
  • To arrange or occur side by side. 

  • (said of certain words) To be often used together, form a collocation; for example strong collocates with tea. 

noun
  • A component word of a collocation; a word that collocates with another. 

equate

verb
  • To consider equal or equivalent. 

  • To set as equal. 

noun
  • A statement in assembly language that defines a symbol having a particular value. 

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