E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Drows
or Trows. A sort of fairy race, residing in hills and caverns. They are curious artificers in iron and precious metals. (Zetland superstition.)
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I hung about thy neck that gifted chain, which all in our isles know was wrought by no earthly artist, but by the Drows in the secret recesses of their caverns.Scott: The Pirate, chap. x.