The story
- Latinīnfrā
- Englishinfra-
- Proto-Indo-European*h₃ed-
- Proto-Indo-European*h₃dónts
- Proto-Italic*dents
- Latindēns
- Medieval Latindentālis
- Middle Frenchdenta
- Late Latindentālis
- Englishdental
- English todayinfradental
Etymology from Wiktionary, CC BY-SA 4.0.