Rocky Mountains
proper noun
Forms the Rocky Mountains Rocky Mountain
Synonyms
Etymology
Calque of French Montagnes de Roche first recorded in 1752 by Jacques Legardeur de Saint-Pierre, believed to itself be a calque from an indigenous language, possibly a calque of Plains Cree asinîwaciy, a compound which includes asiniy (“rock”) + waciy (“mountain”).
Sources: Wiktionary — from the Wiktionary entry “Rocky Mountains”, CC BY-SA 4.0. Details