τέθριππος · tethrippos — LSJ
with four horses yoked abreast
with four horses yoked abreast, ἅρμα Pi. I. 1.14; ζεῦγος A. Fr. 346; ὄχος E. Hipp. 1212; τ. ἡλίου σέλας Id. El. 866; τ. ἅμιλλαι chariot-races, Id. Hel. 386; of the charioteer, οἱ Λυδοὶ ἐπὶ Πέλοπος τέθριπποι . . ἦσαν [καὶ] ἤδη ἁρματῖται Philostr. Im. 1.17 (καὶ secl. Schenkl).
II four-horse chariot, a team of four abreast
τέθριππον (sc. ἅρμα), τό, four-horse chariot, Pi. O. 2.50, Hdt. 6.103, E. Alc. 428, Pl. Ly. 205c, etc.; τ. ἵππων a team of four abreast, Ar. Nu. 1407: pl., of a single chariot, Pi. P. 1.59, E. HF 177.