Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Imporcĭtor (Inp-), ōris, m. [imporco], a deity that presides over the drawing of furrows: Fabius Pictor hos deos enumerat, quos invocat flamen sacrum Cereale faciens Telluri et Cereri … Imporcitorem, Serv. Verg. G. 1, 21; cf.: Imporcitor qui porcas in agro facit arando. Porca autem est inter duos sulcos terra eminens, Paul. ex Fest. p. 108 Müll.