ambul-, ambulat-, -ambulate, -ambulating, -ambulation -ambulator, -ambulatory, -ambulant, -ambulic, -ambulism, -ambulist

(Latin: to walk, take steps, move around; from "to wander, to go astray")

somnambulistic (adjective), more somnambulistic, most somnambulistic
Relating to the act of walking or performing another activity that is associated with wakefulness while asleep or in a sleep-like state.
vicambulate (verb), vicambulates; vicambulated; vicambulating
To walk around in the streets.
vicambulist (s) (noun), vicambulists (pl)
Someone who strolls or wanders around on a street.