fold up vs wind up

fold up

verb
  • To make or become more compact by folding. 

  • To go out of business. 

wind up

verb
  • To tighten (someone or something) by winding or twisting. 

  • To dissolve (a partnership or corporation) and liquidate its assets. 

  • To wind (rope, string, mainsprings, etc.) completely. 

  • To put (a clock, watch, etc.) in a state of renewed or continued motion by winding the spring or other energy-storage mechanism. 

  • To end up; to arrive or result. 

  • To upset; to anger or distress. 

  • To increase (in some aspect). 

  • To roll up (a car window or well bucket, etc., by cranking). 

  • To play a prank (on); to take the mickey (out of) or mock. 

  • To excite. 

  • To make the preparatory movements for a certain kind of pitch. 

  • To conclude, complete, or finish (something). 

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