shipwreck vs unrig

shipwreck

verb
  • To wreck a boat through a collision or mishap. 

noun
  • An event where a ship sinks or runs aground. 

  • A ship that has sunk or run aground so that it is no longer seaworthy. 

  • destruction; ruin; irretrievable loss 

unrig

verb
  • To remove the rigging from (a vessel, etc.). 

  • To disable. 

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