Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
văgo, āre, 1, v. n., act. collat. form of vagor (ante-class.), to wander: te adloquor … quae circum vicinos vagas, Plaut. Mil. 2, 5, 14 Brix: exsul incerta vagat, Pac. ap. Non. 467, 25 (Trag. Rel. v. 225 Rib.): vagant matronae percitatae insaniā, Att. ap. Non. ib. (Trag. Rel. v. 236 ib.); cf. Varr., Turp., and Pompon. ib.