Source : Webster's Revised Unabridged Dictionary (1913)

Oil \Oil\, v. t. [imp. & p. p. {Oiled}; p. pr. & vb. n.
   {Oiling}.]
   To smear or rub over with oil; to lubricate with oil; to
   anoint with oil.

Oiled \Oiled\, a.
   Covered or treated with oil; dressed with, or soaked in, oil.

   {Oiled silk}, silk rendered waterproof by saturation with
      boiled oil.

Source : WordNet®

oiled
     adj : treated with oil; "oiled country roads"; "an oiled walnut
           table" [ant: {unoiled}]