The Collaborative International Dictionary of English v.0.48:

Urban \Ur"ban\, a. [L. urbanus belonging to the ?ity or town,
   refined, polished, fr. urbs, urbis, a city: cf. F. urbain.
   Cf. Urbane.]
   [1913 Webster]
   1. Of or belonging to a city or town; as, an urban
      population.
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   2. Belonging to, or suiting, those living in a city;
      cultivated; polite; urbane; as, urban manners.
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   Urban servitude. See Predial servitude, under
      Servitude.
      [1913 Webster]