The story
- Proto-Indo-European*ís?
- Proto-Indo-European*h₁óynos
- Proto-Italic*oinos
- Old Latinoinos
- Latinūnus
- Latinūni-
- Englishuni-
- Proto-Indo-European*ḱel-
- Proto-Indo-European*ḱélōs
- Proto-Italic*kelōs
- Old Latincolōs
- Latincolor
- Old Frenchcolor
- Anglo-Normancolur
- Middle Englishcolour
- Englishcolor
- English todayunicolor
Etymology from Wiktionary, CC BY-SA 4.0.