set adrift vs unwrap

set adrift

verb
  • To send a ship, boat or raft out to sea without a crew or resources to steer it. 

unwrap

verb
  • To become unwrapped. 

  • To open or undo, as what is wrapped or folded. 

  • To remove word wrap from. 

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