The story
- Proto-Indo-European*sḗh₂l
- Proto-Hellenic*hā́ls
- Ancient Greekᾰ̔́λς (hắls)
- Englishhalo-
- Late Latincyclus
- Middle Englishcicle
- Englishcycle
- Englishcyclize
- Englishcyclization
- English todayhalocyclization
From halo- + cyclization.
Etymology from Wiktionary, CC BY-SA 4.0.