HILL (O. Eng. hyll; cf. Low Ger. hull, Mid. Dutch hul, allied to Lat. celsus, high, collis, hill, etc.), a natural elevation of the earth's surface. The term is now usually confined to elevations lower than a mountain, but formerly was used for all such elevations, high or low.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)