Etymology

nebulous

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Today it means: In the form of a cloud or haze; hazy. Full definition →

Middle English nebulous ← Middle French nebuleus ← Latin nebulōsus
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The story

  1. Proto-Indo-European · derived from*nébʰos“cloud, vapor, fog, moist, sky”
  2. Latin · derived fromnebulōsus“full of mist, foggy, cloudy”
  3. Middle French · derived fromnebuleus
  4. Middle English · inherited fromnebulous
  5. English todaynebulous

Inherited from Middle English nebulous, from Middle French nebuleus, from Latin nebulōsus (“full of mist, foggy, cloudy”), from nebula (“mist, vapour, cloud”), from Proto-Indo-European *nébʰos (“cloud, vapor, fog, moist, sky”). By surface analysis, nebula + -ous. More at neveling, nuel. Cognates * Ancient Greek νέφος (néphos, “cloud”) * German Nebel ** Old High German nebul (“cloud, fog”) * Old English nifol, neowol (“dark, gloomy, obscure, precipitous, prone”)

Words from the same roots

Latinnebulōsus all →

nebulosus

Etymology from Wiktionary, CC BY-SA 4.0.