equate vs keep pace

equate

verb
  • To set as equal. 

  • To consider equal or equivalent. 

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

keep pace

verb
  • To progress at the same rate as another; to keep up 

  • To run at the same speed as a pacesetter 

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