Procyon, A starre called the dogge starre, which appeareth in the caricular dayes.
Lewis and Short: Latin dictionary
Prŏcon, ōnis, m., = *proku/wn (Foredog), a constellation that rises before the dog-star (pure Lat. Antecanis), Cic. Arat. 222; Hor. C. 3, 29, 18; Cic. N. D. 2, 44, 144; Col. 11, 2, 52; Manil. 5, 197.