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thrash

/θɹæʃ/ noun

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about thrash at Wordnik → Where our words come from →

  1. A swimming kick used while treading water.

verb

  1. Give a thrashing to; beat hard.
  2. Move or stir about violently.
    The feverish patient thrashed around in his bed
  3. Dance the slam dance.

Origin

From Middle English thrasshen, thresche, threschen, threschyn, threshen, thresshen, tressyn, þreisshe, þresshe, (whence the modern English thresh), from Old English þerscan, þrexan, from Proto-Germanic *þreskaną (“to thresh; to tread”), from Proto-Indo-European *terh₁- (“to rub, turn; to drill, pierce”).

From Wiktionary, via Kaikki.org (CC BY-SA)