unguis, is, m., a (finger) nail.
ūniversus [ūnus + vertō], adj., all in one, whole, entire.
ūnus, gen. unīus, adj., one, only, sole, alone; ūnus quisque, each one.
urbānus [urbs], adj., of or in the city, esp. in Rome; refined, witty; as noun, urbānī, ōrum, pl. m., city people; town wits.
urbs, urbis, f., a city; The City (Rome).
ūrīnātor, ōris, m., a diver.
ūrna, ae [ūrō], f., a vessel, urn (of baked clay).
[ūrō, ere, ūssī, ūstus], to burn.
co + amb(i)—combūrō, ere, ūssī, ūstus, to burn up, consume.
dē—deūrō, ere, ūssī, ūstus, to burn up, consume.