carry out vs refrain

carry out

verb
  • To hold while moving it out. 

  • To execute or perform; to put into operation; to do. 

  • To fulfill. 

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