refrain vs relate

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. 

relate

verb
  • To interact. 

  • To respond through reaction. 

  • To have a connection. 

  • To bring into a relation, association, or connection (between one thing and another). 

  • To identify with; to understand. 

  • To tell in a descriptive way. 

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