Sirius, A starre in the myddl of the Firmamence, vnto the which when the sonne commeth, the feruentnesse of heate is doubled, whereby the bodyes of men become sick with heat. This starre is also called Canicula: and the dayes wherein it appeareth, be called Caniculares: which doe begin the seuenth day of July.
Lewis and Short: Latin dictionary
Sīrĭus, ii, m., = sei/rios, the dog-star, Sirius, Hyg. Astr. 3, 34; 2, 35; Verg. G. 4, 425; id. A. 3, 141; Tib. 1, 7, 21; Luc. 10, 211 al.—Adj.: ardor,