I. Going on four feet, galloping (poet. and postAug.): “canterius,” Plaut. Capt. 4, 2, 34: “equo juxta quadrupedante,” galloping close by on horseback, Plin. 8, 45, 70, § 182: “sonitus,” of a horse galloping, Verg. A. 8, 596.—
II. Subst., a galloping horse, a steed, courser (poet.): “quadrupedantum Pectora,” Verg. A. 11, 614.