devour vs refrain

devour

verb
  • To absorb or engross the mind fully, especially in a destructive manner. 

  • To take in avidly with the intellect or with one's gaze. 

  • To rapidly destroy, engulf, or lay waste. 

  • To eat quickly, greedily, hungrily, or ravenously. 

refrain

verb
  • To stop oneself from some action or interference; to abstain. 

  • To abstain from (food or drink). 

noun
  • The chorus or burden of a song repeated at the end of each verse or stanza. 

  • A much repeated comment, complaint, or saying. 

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