Lewis Short
(verb) : ĭn-ambŭlo, āre
* To walk up and down, pace to and fro (class.): paululum in porticu,Cic. Rep. 1, 2: in viridi opacaque ripa,id. Leg. 1, 5, 15: domi,id. Att. 6, 2, 5: cum quidam pransus ... manibus ad tergum rejectis inambularet, Asin. ap. Cic. Fam. 10, 32, 3: per muros,Liv. 23, 43, 8.— Impers.: inambulandumst,Plaut. As. 3, 3, 92.
Charlton T. Lewis, Charles Short, A Latin Dictionary