Etymology

aluminous

A1L1U1M3I1N1O1U1S1

Today it means: of or pertaining to alumina or alum Full definition →

Proto-Indo-European *h₃édosder.? ← English alumina
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The story

  1. Englishalumina
  2. Proto-Indo-European*h₃ed-
  3. Proto-Indo-European*h₃édosder.?
  4. English todayaluminous

From alumina + -ous.

Etymology from Wiktionary, CC BY-SA 4.0.