'vaulted' originates from the Old French word 'voute', which came from the Latin word 'voluta', where 'voluta' meant 'a spiral, a roll'.

'voluta' transformed into the Old French 'voute', and eventually became the modern English word 'vault' and its adjective form 'vaulted'.

Initially, it meant 'a curved structure', but over time it evolved into its current meaning of 'having an arched form or structure, or the past tense/participle of vault (to leap)'.