ἰλάρχης
English (LSJ)
(later written εἰλ-, cf. βειλάρχας), ου, ὁ, (ἴλη)
A commander of a troop of horse, PPetr.3p.8 (iii B.C.), al., Ascl.Tact.7.2, Plu.Tim. 31 (pl.), Arr.An.2.7.3; = Lat. praefectus turmae, Plb.6.25.1, 6.35.8. II commander of eight elephants, Ascl.Tact.9, Ael.Tact.23:— hence ἰλ-αρχέω, Boeot. ϝιλαρχίω, command cavalry, IG7.3087 (Lebad.), 3206 (Orchom.), 2466 (Thebes). II at Rome, to be sevir equitum, D.C.55.10.