Note 22 — INDIAN GEOGRAPHICAL NAMES.
Reading edition
Shea's Early Voyages on the Mississippi, p. 75.
La Metairie's 'Olighinsipou' suggests another possible derivation which may be worth mention. The Indian name of the Alleghanies has been said,—I do not now remember on whose authority,—to mean 'Endless Mountains.' 'Endless' cannot be more exactly expressed in any Algonkin language than by 'very long' or 'longest,'—in the Delaware, Eluwi-guneu. "The very long or longest river" would be Eluwi-guneu sipu, or, if the words were compounded in one, Eluwi-gunesipu.