ὁ/ἡ ἵππος, -ου – a horse
ἐπὶ μὲν ἵππου οἱ πλούσιοι τῶν ἀνθρώπων ὠχοῦντο, ἐπὶ δὲ ὄνου οἱ πένητες· πολυτελέστεροι γάρ εἰσιν οἱ ἵπποι τῶν ὄνων τε καὶ θάττω*, ὃθεν ἤδη ὁ Ὅμηρος “ὠκύποδας” ἐκάλεσε τοὺς ἵππους, τουτέστι· ταχεῖς (= ὠκεῖς) τοὺς πόδας.
* θάττω = θάττονες/ταχύτεροι
On horseback the rich people used to ride, whereas on a donkey the poor people rode since horses are more expensive than donkeys and also faster. For this reason already Homer called the horses „swift footed“, i.e. „fast regarding their foot“.