The story
- Proto-Indo-European*né
- Proto-Indo-European*n̥-
- Proto-Germanic*un-
- Proto-West Germanic*un-
- Old Englishun-
- Middle Englishun-
- Englishun-
- Proto-Indo-European*gel-
- Proto-Indo-European*gól-
- Proto-Germanic*kalaną
- Proto-Germanic*kōluz
- Proto-West Germanic*kōl(ī)
- Old Englishcōl
- Middle Englishcool
- Englishcool
- English todayuncool
Etymology from Wiktionary, CC BY-SA 4.0.