Etymology

fluorescer

F4L1U1O1R1E1S1C3E1R1

Today it means: A fluorescent substance used for whitening. Full definition →

English fluoresce ← Middle English sparston ← Old English spærstān
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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. English todayfluorescer

From fluoresce + -er.

Etymology from Wiktionary, CC BY-SA 4.0.