Etymology

metalloid

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Today it means: An element, such as silicon or germanium, intermediate in properties between that of a metal and a nonmetal; especially an elemental semiconductor. Full definition →

Ancient Greek εἶδος (eîdos) ← Proto-Hellenic *wéidos ← Proto-Indo-European *wéydos
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The story

  1. Ancient Greekμέταλλον (métallon)
  2. Latinmetallum
  3. Old Frenchmeta
  4. Middle Englishmetal
  5. Englishmetal
  6. Proto-Indo-European*weyd-
  7. Proto-Indo-European*wéydos
  8. Proto-Hellenic*wéidos
  9. Ancient Greekεἶδος (eîdos)
  10. English todaymetalloid

From metal + -oid.

Etymology from Wiktionary, CC BY-SA 4.0.