Etymology

photorearrangement

Today it means: Any photoisomerization reaction that leads to changes in the arrangement of atoms in a molecule Full definition →

English rearrangement ← 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. Englishrearrangement
  9. English todayphotorearrangement

From photo- + rearrangement.

Etymology from Wiktionary, CC BY-SA 4.0.