dirk vs stylet

dirk

noun
  • A long Scottish dagger with a straight blade. 

verb
  • To stab with a dirk. 

stylet

noun
  • An engraving tool, a stylus. 

  • A style of a plant's flower. 

  • A slender medical probe or device. 

  • A stiff, slender organ of an animal. 

  • A poniard or stiletto. 

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