'perambulatory' originates from Latin, specifically the word 'perambulare,' where 'per-' meant 'through' and 'ambulare' meant 'to walk.'

'perambulare' transformed into the Medieval Latin 'perambulatorius,' and eventually became the modern English word 'perambulatory.'

Initially, it meant 'relating to walking through or about,' but over time it evolved into its current meaning of 'relating to or capable of walking or moving about.'