equus or ecus ī (gen plur. equōm or equūm, V.), m 3 AC-, a horse, steed, charger: fortis: equis uti: cadere de equo: inanis, without a rider: in equo, mounted: ex equo pugnare, L.

— Fig.: conrigam tarditatem cum equis, tum quadrigis, i. e. will use extreme diligence: equis, viris subvenire, with horse and foot, i. e. with might and main: equis virisque, i. e. with their whole force, L.

—Plur, a chariot (poet.): Semper equos canebat, V.: conscendit equos, O.

—A sea-horse: bipedum currus equorum, V.

—The Trojan Horse: Troianus: trabibus contextus, V.: Equus Troianus, a play of Livius Andronicus.

—Fig.: intus est equus Troianus, i. e. treason.

—The constellation Pegasus.