The story
- Proto-Indo-European*ís?
- Proto-Indo-European*h₁óynos
- Proto-Italic*oinos
- Old Latinoinos
- Latinūnus
- Latinūni-
- Englishuni-
- Proto-Indo-European*dʰeh₁-
- Proto-Indo-European*dʰeh₁k-
- Proto-Indo-European*dʰh₁kyéti
- Proto-Italic*θakjō
- Proto-Italic*fakjō
- Latinfaciō
- Latinfaciēs
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Medieval Latinfaciālis
- Englishfacial
- English todayunifacial
Etymology from Wiktionary, CC BY-SA 4.0.