scimitar vs skean

scimitar

noun
  • A sword of Persian origin that features a curved blade. 

  • A long-handled billhook. 

verb
  • To strike or slice with, or as if with, a scimitar. 

skean

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

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