II. as Subst., ἡ ἱ. (sc. τάξις) the order of knights (ἱππεῖς) at Athens, Arist.Pol.1274a21; θυσίαι, βοῦς ἱππάδες of sacrifices offered by the knights, Hsch.; πύλαι ἱ., name of a gate at Athens, Plu.2.849c.
2. knights' tax, “ἱππάδα τελεῖν” Is.7.39, Arist.Ath.7.4, Plu.Sol.18; θητικοῦ ἀντὶ τέλους ἱππάδ᾽ ἀμειψάμενος Epigr. ap. Arist.Ath.l.c.
4. a boy's game, Poll. 9.122.