Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
* ad-moenĭo, īre, 4, v. a., to draw near the walls, to besiege, invest: oppidum. Plaut. Ps. 1, 3, 150 (but not id. ib. 2, 1, 11; cf. Ritschl ad h. l.; and id. Cist. 2, 2, 5, for admoenivi, admovi is a more correct reading; v. admoveo).