The story
- Proto-Indo-European*kʷelh₁-redup.
- Proto-Indo-European*kʷékʷlos
- Proto-Hellenic*kʷókʷlos
- Proto-Hellenic*kúklos
- Ancient Greekκύκλος (kúklos)
- Late Latincyclus
- Middle Englishcicle
- Englishcycle
- Ancient Greekκύκλος (kúklos)
- Ancient Greekκυκλῐκός (kuklĭkós)
- Classical Latincyclicu
- Middle Frenchcyclique
- Frenchcyclique
- Classical Latincyclicus
- Englishcyclic
- Englishcyclo-
- Englishpropane
- Englishcyclopropane
- Proto-Indo-European*swel-der.?
- Ancient Greekῡ̔́λη (hū́lē)
- Englishcycl(opropyl)
- English todaycyclazocine
From cycl(opropyl) + -azocine (“narcotic antagonist/agonist”).
Etymology from Wiktionary, CC BY-SA 4.0.