Etymology

bilayer

B3I1L1A1Y4E1R1

Today it means: Any structure consisting of two layers of molecules Full definition →

English layer ← Middle English leyen ← Old English leċġan
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The story

  1. Proto-Indo-European*dwóh₁
  2. Proto-Indo-European*dwi-
  3. Proto-Italic*dwi-
  4. Latinbi-
  5. Englishbi-
  6. Proto-Indo-European*legʰ-
  7. Proto-Indo-European*logʰéyeti
  8. Proto-Germanic*lagjaną
  9. Proto-West Germanic*laggjan
  10. Old Englishleċġan
  11. Middle Englishleyen
  12. Englishlay
  13. Englishlayer
  14. English todaybilayer

From bi- + layer.

Etymology from Wiktionary, CC BY-SA 4.0.