Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
unguen, ĭnis, n. [unguo, ungo], a fatty substance, fat; an ointment, unguent: in aënum caldum unguen indito, Cato, R. R. 79; 80: pingues unguine ceras, Verg. G. 3, 450: cras. sum, Pers. 6, 40: pingue, Val. Fl. 6, 360; 8, 302 al.