The story
- Proto-Indo-European*temh₁-?
- Proto-Indo-European*tend-
- Proto-Indo-European*tondeh₂
- Proto-Celtic*tondā
- Medieval Latintunna
- Old Frenchtone
- Middle Englishtonnel
- Englishtunnel
- English todaytunneller
Etymology from Wiktionary, CC BY-SA 4.0.
Etymology from Wiktionary, CC BY-SA 4.0.