The Nuttall Encyclopedia
A tall four-sided pillar, generally monolithic, tapering to a pyramidal pointed top, erected in connection with temples in Egypt, and inscribed all over with hieroglyphs, and in memorial, as is likely, of some historical personage or event; they are of ancient date.
Wood, James, ed. Entry for 'Obelisk'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/o/obelisk.html. Frederick Warne & Co Ltd. London. 1900.