Lewis & Short

2. prō-vīso, ĕre, v. n. and a., to go or come forth to see (ante-class.): proviso, quid agat Pamphilus, Ter. And. 5, 5, 1: huc proviso, ut, ubi tempus siet, Deducam, id. Eun. 3, 1, 4; id. Ad. 5, 6, 1 (proviso duas res significat: procedo et video, Don.).
With acc.: si quem hominem exspectant, eum solent provisere, to be on the lookout for him, Plaut. Stich. 5, 1, 2.