Barre des Écrins
French for 'bar of the Écrins' — barre is a Dauphiné mountaineering term for a long horizontal cliff or ridge, and the Écrins are the highest sub-massif of the Dauphiné Alps. Écrin is the modern French for 'casket' or 'jewel-box', but the regional toponym is likely older and unrelated, possibly from a Celtic root meaning 'enclosure'.