Dictionary entry

ἱππεύς

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

ἱππεύς, -έως (on acc. pl., -εῖς, ν. Bl., § 8, 2; Thack., Gr., 148),ὁ

(< ἵππος), [in LXX chiefly for פָּרָשׁ;]

a horseman: Ac 23:23, 32.†