Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Ūcălĕgōn, ontis, m., = Οὐκαλέγων, the name of a Trojan: ardet Ucalegon, i. e. his house, Verg. A. 2, 312; cf. Juv. 3, 199.