Etymology

igneous

ig·ne·ous
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Today it means: Pertaining to or having the nature of fire; containing fire; resembling fire. Full definition →

Latin igneus ← Proto-Italic *engʷnis ← Proto-Indo-European *h₁n̥gʷnís
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The story

  1. Proto-Indo-European*h₁engʷ-
  2. Proto-Indo-European*h₁n̥gʷnís
  3. Proto-Italic*engʷnis
  4. Latinign(is)
  5. Latinigneus
  6. English todayigneous

From Latin igneus (“fiery”). By surface analysis, Latin ign- + -eous.

Words from the same roots

Latinigneus all →

igneal

Etymology from Wiktionary, CC BY-SA 4.0.