Jovial and Birth Dates

In Roman astrology, planets were named after gods, and people were thought to share the personality traits of the god whose planet was rising when they were born. Jupiter, also called Jove, was the chief Roman god and was considered a majestic type who was the source of joy and happiness. The Latin adjective jovialis means "of or relating to Jove." In French, this had become jovial, which English borrowed and used to describe people and things full of cheer or joy.