Relating to the Dog Star (Sirius), or referring to the period of hot, sultry summer weather.
From Latin canicularis, derived from canicula (little dog/Dog Star). The term carries the astronomical and meteorological associations of the star Sirius.
Ancient astronomy was deeply mythological—they didn't just see stars randomly in the sky; they connected them into stories, so a star wasn't just hot, it was a cosmic hunting dog!
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