Etymology

photofermentation

Today it means: fermentation that only proceeds in the presence of light; especially a process of producing hydrogen. Unlike biophotolysis in which hydrogen is produced from water, photofermentation produces hydrogen from organic substrates. Full definition →

English fermentation ← Ancient Greek φωτο- (phōto-) ← Proto-Hellenic *pʰáwos
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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. Englishfermentation
  9. English todayphotofermentation

From photo- + fermentation.

Etymology from Wiktionary, CC BY-SA 4.0.