Lewis & Short

ālĭpēs, ĕdis, adj. (abl. alipedi, Val. Fl. 5, 612, like aliti from ales) [ala-pes] (poet. and rare; never in Hor.).

  1. I. Lit., with wings on the feet, wing-footed.
    As an epithet of Mercury: sacra alipedis dei, Ov. F. 5, 100; id. M. 11, 312; also simply Alipes for Mercurius: mactatur vacca Minervae, Alipedi vitulus, id. ib. 4, 754.
    So of the horses in the chariot of the Sun, Ov. M. 2, 48.
    Hence,
  2. II. Transf., swift, fleet, quick (cf. ales, I.): cervi, * Lucr 6, 766; equi, Verg. A. 12, 484; also alipes, absol. for equus, id. ib. 7, 277: alipedi curru, Val. Fl. 5, 612; Sil. 7, 700.