Lewis & Short

ĕpĭbăta, ae, m., = ἐπιβάτης (one who mounts).

  1. I. A rider of a camel, Hyg. Grom. p. 10 b.
  2. II. A soldier on board a ship (pure Lat. classiarius miles), Auct. B. Alex. 11, 4; Auct. B. Afr. 20, 1; 62, 1; 63, 4; Vitr. 2, 8.