Where does “intertunnel” come from?

intertunnel (English) comes from English inter, from Middle English enteren, from French entrer, from Middle French entrer, from Old French entrer, from Latin intrō, from Latin intra, from Latin interus — Contrastive or oppositional adjectival suffix.

intertunnel (English): Between tunnels

Definitions

  1. Between tunnels

Ancestry of “intertunnel”, step by step

intertunnel traces back through two separate lines of ancestry.

via English inter

StepLanguageWordMeaning
1EnglishinterTo bury in a grave; To confine, as in a prison
2Middle Englishenteren
3Frenchentrerto enter
4Middle Frenchentrerto enter
5Old Frenchentrerto enter
6Latinintrōto enter, go into, come in, get in, penetrate
7Latinintrawithin; inside; during; less than
8Latininterus
9Proto-Indo-Europeanh₁énterosinside, within
10Proto-Indo-European-terosContrastive or oppositional adjectival suffix

via English Tunnel

StepLanguageWordMeaning
1EnglishTunnelAn underground or underwater passage
2Old Frenchtonelbarrel
3Old Frenchtonelarge barrel
4Late Latintunnatun, box
5Proto-Celtictunnahide, skin
Every word from Proto-Indo-European -terosEvery word from Proto-Indo-European h₁énterosEvery word from Latin interus
intertunnel — Etymology, Origin & Word History | Etymology Explorer