The story
- Proto-Indo-European*leb-
- Proto-Indo-European*l̥b-yóm
- Proto-Italic*labjom
- Latinlabium
- Englishlabio-
- Proto-Indo-European*h₃ed-
- Proto-Indo-European*h₃dónts
- Proto-Italic*dents
- Latindēns
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Medieval Latindentālis
- Middle Frenchdenta
- Late Latindentālis
- Englishdental
- Englishlabiodental
- English todaylabiodentally
From labiodental + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.