Etymology

tetrasulfide

T1E1T1R1A1S1U1L1F4I1D2E1

Today it means: Any sulfide having four sulfur atoms Full definition →

English sulfide ← Proto-Indo-European *dʰeh₁- ← Middle English sulphur
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The story

  1. Proto-Indo-European*kʷetwóres
  2. Proto-Hellenic*kʷétwores
  3. Ancient Greekτέσσᾰρες (téssăres)
  4. Ancient Greekτετρᾰ- (tetră-)
  5. Englishtetra-
  6. Latinsulpur
  7. Latinsulfur
  8. Latinsulphur
  9. Anglo-Normansulfre
  10. Middle Englishsulphur
  11. Englishsulf(ur)
  12. Proto-Indo-European*dʰeh₁-
  13. Englishsulfide
  14. English todaytetrasulfide

From tetra- + sulfide.

Etymology from Wiktionary, CC BY-SA 4.0.