Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
appĕtītor (adp-), ōris, m. [appeto], one that strives or longs for something (eccl. and late Lat.): alienorum, Vulg. 1 Pet. 4, 15; boni linteaminis, Lampr. Alex. Sev. 40; so Amm. 25, 5; Arn. 4, p. 136.