canicular (adj.) Look up canicular at Dictionary.com
late 14c., in reference to the "dog days," from Latin canicularis "pertaining to the dog days," from canicula "little dog," also "the Dog Star," diminutive of canis (from PIE root *kwon- "dog"). Also see heliacal; Sirius. In literal use ("pertaining to a dog") historically only as attempt at humor.