Lewis and Short Latin Lexicon

vădo, āre, v. a. vadum, to wade through, ford: flumina, quae sine pontibus vadari nequeunt, Veg. Mil. 2, 25: quia neque navium copia pro tempore erat, neque vadari fluvius poterat, Sulp. Sev. Chron. 1, 22, 3.