Why is a sign called a dog? - briefly
The term "dog" in this context refers to the constellation Canis Major, which contains Sirius, the brightest star in the night sky. The name has been used since ancient times due to its prominence and association with the celestial canine figure.
Why is a sign called a dog? - in detail
The term "dog" in relation to signs or symbols is often associated with the Latin word "canis," which means "dog." In ancient times, dogs were considered loyal and reliable companions, much like how signs serve as reliable indicators or markers. This association has carried over into various fields, such as astronomy and navigation, where certain constellations and stars are referred to by their canine-related names, reflecting the historical significance of these animals in human culture.