skean vs stiletto

skean

noun
  • A double-edged, leaf-shaped, typically bronze dagger formerly used in Ireland and Scotland. 

stiletto

noun
  • A small, slender knife or dagger-like weapon intended for stabbing. 

  • An awl. 

  • A rapier. 

  • A woman's shoe with a tall, slender heel (called a stiletto heel). 

verb
  • To attack or kill with a stiletto (dagger). 

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