pose vs refrain

pose

verb
  • To place in an attitude or fixed position, for the sake of effect. 

  • To constitute (a danger, a threat, a risk, etc.). 

  • To assume or maintain a pose; to strike an attitude. 

  • To falsely impersonate (another person or occupation) primarily for the purpose of accomplishing something or reaching a goal. 

  • To behave affectedly in order to attract interest or admiration. 

  • To ask; to set (a test, quiz, riddle, etc.). 

noun
  • Affectation. 

  • Position, posture, arrangement (especially of the human body). 

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 pose and refrain occurred in a corpus of books? (source: Google Ngram Viewer )