sharp end vs shipwreck

sharp end

noun
  • The bow of a ship 

  • The most difficult or dangerous aspect of something 

shipwreck

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 

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

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