Etymology

unimolecular

U1N1I1M3O1L1E1C3U1L1A1R1

Today it means: involving a single molecule Full definition →

English molecular ← Proto-Indo-European *h₂élisder.? ← French molécule
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The story

  1. Proto-Indo-European*ís?
  2. Proto-Indo-European*h₁óynos
  3. Proto-Italic*oinos
  4. Old Latinoinos
  5. Latinūnus
  6. Latinūni-
  7. Englishuni-
  8. Latinmōlēs
  9. New Latinmōlēcula
  10. Frenchmolécule
  11. Englishmolecule
  12. Proto-Indo-European*h₂el-
  13. Proto-Indo-European*h₂élisder.?
  14. Englishmolecular
  15. English todayunimolecular

From uni- + molecular.

Etymology from Wiktionary, CC BY-SA 4.0.