offload vs unwind

offload

noun
  • The act of offloading something, or diverting it elsewhere. 

  • The act of passing the ball to a team mate when tackled. 

verb
  • to deny a person on a standby list due to lack of space. 

  • to unload. 

  • to get rid of things, work, or problems by passing them on to someone or something else. 

  • to change a passengers' ticket status from "checked in" to "open", allowing further changes. (This applies regardless of whether the passenger has boarded the aircraft or not). 

  • to pass the ball. 

unwind

noun
  • Any mechanism or operation that unwinds something. 

verb
  • To undo something. 

  • To relax; to chill out; to rest and become relieved of stress 

  • To close out a position, especially a complicated position. 

  • To be or become unwound; to be capable of being unwound or untwisted. 

  • To analyse (a call stack) so as to generate a stack trace etc. 

  • To separate (something that is wound up) 

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