'luxurious' originates from Latin, specifically the word 'luxuriosus,' where 'luxuria' meant 'excess or extravagance.'

'luxuriosus' transformed into the Old French word 'luxurieux,' and eventually became the modern English word 'luxurious' through Middle English.

Initially, it meant 'excessive or extravagant,' but over time it evolved into its current meaning of 'rich and opulent.'