Patrol

pa-trōl′, v.i. to go the rounds in a camp or garrison: to watch and protect.— v.t. to pa round as a sentry:— pr.p. patrōl′ling; pa.t. and pa.p. patrōlled′. — n. the marching round of a guard in the night: the guard or men who make a patrol: (also Patrōl′man ) a policeman who walks about a certain beat for a specified time, such policemen collectively. [O. Fr. pat rouille , a patrol, patrouiller , to march in the mud, through a form patouiller , from pate (mod. patte ), the paw or foot of a beast, of Teut. origin, cf. Ger. patsche , little hand.]