CAUSEWAY, or CAUSEY, a massive construction of stones, stakes, and fascines; or an elevation of fat viscous earth, well beaten; serving either as a road in wet marshy places, or as a mole to retain the waters of a pond, or prevent a river from overflowing the lower grounds. See ROAD.—The word comes from the French chaussée, anciently wrote chaussée; and that from the Latin calceata, or calcata; according to Somner and Spelman, à calcando. Bergier rather takes the word to have had its rise à pedum calcis, quibus teruntur. Some derive it from the Latin calc, or French chaux, as supposing it primarily to denote a way paved with chalk stones.