The Collaborative International Dictionary of English v.0.48:

Sugar \Sug"ar\, v. t. [imp. & p. p. Sugared; p. pr. & vb. n.
   Sugaring.]
   1. To impregnate, season, cover, or sprinkle with sugar; to
      mix sugar with. "When I sugar my liquor." --G. Eliot.
      [1913 Webster]

   2. To cover with soft words; to disguise by flattery; to
      compliment; to sweeten; as, to sugar reproof.
      [1913 Webster]

            With devotion's visage
            And pious action we do sugar o'er
            The devil himself.                    --Shak.
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The Collaborative International Dictionary of English v.0.48:

Sugaring \Sug"ar*ing\, n.
   1. The act of covering or sweetening with sugar; also, the
      sugar thus used.
      [1913 Webster]

   2. The act or process of making sugar.
      [1913 Webster]