Etymology

tetrafluoro

T1E1T1R1A1F4L1U1O1R1O1

Today it means: Four fluoro groups in a compound Full definition →

English fluoro ← Middle English o ← Old French oh
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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. Proto-Indo-European*bʰel-
  7. Proto-Indo-European*bʰlewH-
  8. Proto-Indo-European*bʰluH-yé-ti?
  9. Latinfluō
  10. Latinfluor
  11. Englishfluor
  12. Englishfluorite
  13. Middle Low Germanspar
  14. Old Englishspærstān
  15. Middle Englishsparston
  16. Englishsparstonebf.
  17. Englishspar
  18. Englishfluorspar
  19. Englishfluorescencebf.
  20. Englishfluoresce
  21. Englishfluor(escent)
  22. Latinō
  23. Old Frenchoh
  24. Middle Englisho
  25. EnglishO
  26. Middle Englisho
  27. Englishoh
  28. Englishfluoro
  29. English todaytetrafluoro

From tetra- + fluoro.

Etymology from Wiktionary, CC BY-SA 4.0.