Etymology

fluoro

F4L1U1O1R1O1

Today it means: A fluorescent light. Full definition →

English oh ← Middle English o ← Old French oh
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The story

  1. Proto-Indo-European*bʰel-
  2. Proto-Indo-European*bʰlewH-
  3. Proto-Indo-European*bʰluH-yé-ti?
  4. Latinfluō
  5. Latinfluor
  6. Englishfluor
  7. Englishfluorite
  8. Middle Low Germanspar
  9. Old Englishspærstān
  10. Middle Englishsparston
  11. Englishsparstonebf.
  12. Englishspar
  13. Englishfluorspar
  14. Englishfluorescencebf.
  15. Englishfluoresce
  16. Englishfluor(escent)
  17. Latinō
  18. Old Frenchoh
  19. Middle Englisho
  20. EnglishO
  21. Middle Englisho
  22. Englishoh
  23. English todayfluoro

From fluor(escent) + -o.

Etymology from Wiktionary, CC BY-SA 4.0.