• Rash


    • IPA: /ræʃ/
    • Rhymes: -æʃ

    Origin 1

    From Middle English rash, rasch ("hasty, headstrong"), from Old English *ræsc ("rash"; found in derivatives: ræscan ("to move rapidly, flicker, flash, quiver, glitter"), ræscettan ("to crackle, sparkle"), etc.), from Proto-Germanic *raskaz, *raskuz, *raþskaz, *raþskuz ("rash, rapid"), from Proto-Indo-European *ret- ("to run, roll"). Cognate with Dutch rasch, ras ("rash, snell"), Middle Low German rasch ("rash"), German rasch ("rash, swift"), Swedish rask ("brisk, quick, rash"), Icelandic röskur ("strong, vigorous").

    Full definition of rash



    1. Acting too quickly without considering the risks and consequences; not careful; hasty.rash words spoken in the heat of debate
    2. So dry as to fall out of the ear with handling, as corn.
    3. (obsolete) Requiring sudden action; pressing; urgent.
      • ShakespeareI scarce have leisure to salute you,
        My matter is so rash.
    4. (obsolete) Fast-acting.
      • ShakespeareStrong as aconitum or rash gunpowder.

    Derived terms



    (plural rashes)
    1. (symptom) An area of reddened, irritated, and inflamed skin.
    2. A surge in problems; a spate, string or trendThere has been a rash of vandalism lately.


    (A surge in problems) epidemic


    1. (obsolete) To prepare with haste.

    Origin 2

    Compare French ras ("short-nap cloth"), Italian and Spanish raso, satin, or Italian rascia ("serge"), German Rasch, probably from Arras in France.



    1. An inferior kind of silk, or mixture of silk and worsted.

    Origin 3

    For arace


    1. To pull off or pluck violently.
    2. To slash; to hack; to slice.
      • Spenserrashing of helms and riving plates asunder


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