Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
hortātōrĭus, a, um, adj. [hortator], encouraging, cheering (late Lat.): irrisio, Aug. Conf. 8, 11 fin.: mandata, Ambros. Cant. Cantic. 3, 3: locus hortatorius ad fidem, Ambros. in Luc. 8, 30.