'jovial' originates from Latin, specifically the word 'jovialis,' where 'Jovis' referred to 'Jupiter,' the Roman god of the sky and thunder.

'jovialis' transformed into the French word 'jovial,' and eventually became the modern English word 'jovial' through Middle English.

Initially, it meant 'pertaining to Jupiter,' but over time it evolved into its current meaning of 'cheerful and friendly.'