Etymology

photopyrone

P3H4O1T1O1P3Y4R1O1N1E1

Today it means: The ketone 3-hexyl-4-hydroxy-6-(2-methylpropyl)pyran-2-one (and related compounds) that at as quorum sensing signals in Photorhabdus Full definition →

English pyrone ← German Keton ← Latin pyr
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The story

  1. Proto-Indo-European*bʰeh₂-
  2. Proto-Indo-European*bʰéh₂os
  3. Proto-Hellenic*pʰáwos
  4. Ancient Greekφᾰ́ος (phắos)
  5. Ancient Greekφῶς (phôs)
  6. Ancient Greekφωτο- (phōto-)
  7. Englishphoto-
  8. Proto-Indo-European*péh₂wr̥
  9. Proto-Hellenic*pāwər
  10. Ancient Greekπῦρ (pûr)
  11. Latinpyr
  12. Englishpyro-
  13. GermanKeton
  14. Englishketone
  15. Englishpyrone
  16. English todayphotopyrone

From photo- + pyrone.

Etymology from Wiktionary, CC BY-SA 4.0.