refrain vs submit

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. 

submit

verb
  • To win a fight against (an opponent) by submission. 

  • To yield (something) to another, as when defeated. 

  • To enter or put forward for approval, consideration, marking etc. 

  • To yield or give way to another. 

  • To subject; to put through a process. 

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