Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
impĭo (inp-), āvi, ātum, 1, v. a. [impius], to render impious or sinful, to stain or defile with sin, to pollute (ante- and postclass.): si erga parentem aut deos me impiavi, Plaut. Rud. 1, 3, 8: impias, ere, te! oratorem verberas, id. Poen. 1, 2, 173: cor coinquinatum vitiis, Prud. Hymn. Ant. Somn. 53: cruore humano aspersus atque impiatus, App. M. 1, p. 110; cf.: reus tot caedibus impiatus, id. ib. 3, p. 131: thalamos tanto facinore, Sen. Hippol. 1185: oculos, Pacat. Pan. Th. 43.
Pass. impers.: toties Romanis impiatum est, quoties triumphatum, Minuc. Fel. Oct. 25.