English
intermontane
From inter- + montane.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Proto-Indo-European *men- ‘to stand out, to tower’
Proto-Indo-European *móntis
Proto-Italic *monts
Latin mōns ‘mountain’
Latin montānus ‘of or pertaining to a mountain’
English montane
Today it means
adj Between mountains.
Language periods are conventional ranges, not dates for this word.
Etymograph / intermontane