Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
trans-verbĕro, āvi, ātum, 1, v. a., to strike or beat through, to thrust through, pierce through, transfix: praeclara bestia venabulo transverberatur, Cic. Fam. 7, 1, 3: abiete pectus, Verg. A. 11, 667: clipei aera (hasta), id. ib. 10, 336: in utrumque latus transverberatus, Tac. H. 1, 42: aëra volitando, App. de Deo Socr. p. 46, 37.