Where does “intermountain” come from?

intermountain (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.

intermountain (English): Between mountains

Definitions

  1. Between mountains

Ancestry of “intermountain”, step by step

intermountain 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 Mountain

StepLanguageWordMeaning
1EnglishMountaina steam locomotive of the 4-8-2 wheel arrangement
2Middle EnglishmountayneA mountain; a mount or peak; A lump or pile
3Anglo-Normanmontaigne
4Latinmontāniamountainous area
5Latinmontemaccusative singular of mōns; mountain
6Latinmonsmountain, mount; towering mass, heap, great...
7Proto-Indo-Europeanmonti
8PortugueseMontemount; a mountain or large hill
9Old Portuguesemonte
Every word from Proto-Indo-European -teros
intermountain — Etymology, Origin & Word History | Etymology Explorer