flail vs scutch

flail

noun
  • A tool used for threshing, consisting of a long handle with a shorter stick attached with a short piece of chain, thong or similar material. 

  • A weapon which has the (usually spherical) striking part attached to the handle with a flexible joint such as a chain. 

verb
  • To beat using a flail or similar implement. 

  • To wave or swing vigorously 

  • To thresh. 

  • To move like a flail. 

scutch

noun
  • A wooden implement shaped like a large knife used to separate the valuable fibres of flax or hemp by beating them and scraping from it the woody or coarse portions. 

  • A bricklayer's small picklike tool with two cutting edges (or prongs) for dressing stone or cutting and trimming bricks. 

  • The woody fibre of flax or hemp; the refuse of scutched flax or hemp. 

  • A tuft or clump of grass. 

verb
  • To separate the woody fibre from (flax, hemp, etc.) by beating; to swingle. 

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