I am including this passage from the chariot race in book 23 of the Iliad because in the last three words he imitates the sound of galloping horses. (Kephalas katathente petesthen)
After the mares, the Trojan stallions of Diomedes came out not far behind, in fact very close. For the two horses seemed to be about to mount the chariot in front. Eumelus’ back and broad shoulders were warmed by their breath. They held their heads over him as they flew along.
τὰς δὲ μετ᾽ ἐξέφερον Διομήδεος ἄρσενες ἵπποι
Τρώϊοι, οὐδέ τι πολλὸν ἄνευθ᾽ ἔσαν, ἀλλὰ μάλ᾽ ἐγγύς:
αἰεὶ γὰρ δίφρου ἐπιβησομένοισιν ἐΐκτην,
380πνοιῇ δ᾽ Εὐμήλοιο μετάφρενον εὐρέε τ᾽ ὤμω
θέρμετ᾽: ἐπ᾽ αὐτῷ γὰρ κεφαλὰς καταθέντε πετέσθην.