The Collaborative International Dictionary of English v.0.48:

Dilettante \Dil`et*tan"te\, n.; pl. Dilettanti. [It., prop. p.
   pr. of dillettare to take delight in, fr. L. delectare to
   delight. See Delight, v. t.]
   An admirer or lover of the fine arts; popularly, an amateur;
   especially, one who follows an art or a branch of knowledge,
   desultorily, or for amusement only.
   [1913 Webster]

         The true poet is not an eccentric creature, not a mere
         artist living only for art, not a dreamer or a
         dilettante, sipping the nectar of existence, while he
         keeps aloof from its deeper interests.   --J. C.
                                                  Shairp.
   [1913 Webster]