Lewis & Short

Antĕ-cănis, is, m., transl. of Προκύων, a constellation, the Lesser Dog-star, so called as rising before the Dog-star: Antecanis Graio Procyon qui nomine fertur, Cic. N. D. 2, 44, 114; id. Arat. 222; cf. Plin. 18, 28, 68, § 268.