'vestibule' originates from Latin, specifically the word 'vestibulum,' where 'vestibulum' meant 'entrance or forecourt.'

'vestibulum' transformed into the French word 'vestibule,' and eventually became the modern English word 'vestibule' through Middle English.

Initially, it meant 'entrance or forecourt,' but over time it evolved into its current meaning of 'an antechamber or lobby.'