Etymology

didymium

D2I1D2Y4M3I1U1M3

Today it means: A mixture of praseodymium and neodymium once thought to be an element (symbol Di). Full definition →

Ancient Greek δίδυμος (dídumos) ← Proto-Hellenic *dúwo ← Proto-Indo-European *dwóh₁
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The story

  1. Proto-Indo-European*dwóh₁
  2. Proto-Hellenic*dúwo
  3. Ancient Greekδύο (dúo)redup.
  4. Ancient Greekδίδυμος (dídumos)
  5. English todaydidymium

From Ancient Greek δίδυμος (dídumos, “twin”) + -ium.

Words from the same roots

Ancient Greekδίδυμος all →

didymusdidymalgiadidymosdidymous

Etymology from Wiktionary, CC BY-SA 4.0.