unfurl vs wrap up

unfurl

verb
  • To roll out or debut anything. 

  • To open up by unrolling. 

  • To turn out or unfold; to evolve; to progress. 

  • To unroll or release something that had been rolled up, typically a sail or a flag. 

wrap up

verb
  • To combine, incorporate or encapsulate into one thing. 

  • To summarize or recapitulate. 

  • To hide or cover up. 

  • To conclude or finish completely. 

  • To cover or enclose (something) by folding and securing a covering entirely around it. 

  • To put on abundant clothing as protection from the cold; to bundle up. 

  • To curl into a more compact form. 

  • To tie up; to make too busy to respond. 

  • To cocoon; to surround protectively. 

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