Etymology

photocyclization

Today it means: Any intramolecular photochemical process leading to a ring system by formation of one new single bond, either by a concerted process (e.g., electrocyclization) or by multi-step processes such as the Norrish-Yang reaction. Full definition →

English cyclization ← Middle English cicle ← Late Latin cyclus
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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. Late Latincyclus
  9. Middle Englishcicle
  10. Englishcycle
  11. Englishcyclize
  12. Englishcyclization
  13. English todayphotocyclization

From photo- + cyclization.

Etymology from Wiktionary, CC BY-SA 4.0.