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gnash

verb

  1. grind together
  2. remove through grinding
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Wiktionary

Pronunciation: /ˈnæʃ/

noun

Etymology: From Middle English gnasten. Origin unknown; the word is probably either Germanic or onomatopoeic. Compare Old Norse gnastan, Danish gnaske ("munch", "crunch"), German knirschen, German Low German gnirschen, gnörschen (“gnash”), Swedish gnissla (“squeak; gnash”).

  1. A sudden snapping of the teeth.

verb

Etymology: From Middle English gnasten. Origin unknown; the word is probably either Germanic or onomatopoeic. Compare Old Norse gnastan, Danish gnaske ("munch", "crunch"), German knirschen, German Low German gnirschen, gnörschen (“gnash”), Swedish gnissla (“squeak; gnash”).

  1. To grind (one's teeth) in pain or in anger.

    gnashing your teeth

  2. To grind between the teeth.

    to gnash the air in fury

    The dog was gnashing a carpet

  3. To clash together violently.

    There they were, boiling up in snowy spouts of spray, smiting and gnashing together like the gleaming teeth of hell.

  4. To run away.