scutching sword vs swingle

scutching sword

noun
  • A beating instrument for scutching flax by hand. 

swingle

noun
  • An implement used to separate the fibres of flax by beating them; a scutch. 

  • The swinging part of a flail, especially that which is used on the grain in threshing; the swiple. 

verb
  • To beat or flog, especially for extracting the fibres from flax stalks; to scutch. 

  • To dangle; to wave hanging. 

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