cutlass vs skean

cutlass

noun
  • A similarly shaped tool; a machete. 

  • A short sword with a curved blade, and a convex edge; once used by sailors when boarding an enemy ship. 

verb
  • To cut back (vegetation) with a cutlass. 

skean

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

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