Note 210 — Chapter VII · MYTHICAL ELEMENTS IN THE HEROIC POEMS.
Reading edition
It is held by many that this name was originally connected with Wascono lant, an early German name for Aquitaine (Gascony) and that the introduction of the Vosges (Wasgunberg) was later and due to the confusion of two similar names. But, if there has been any such confusion at all, chronological considerations render it far more probable that the transference was in the reverse direction.