Source : Webster's Revised Unabridged Dictionary (1913)

Withhold \With*hold"\, v. t. [imp. {Withheld}; p. p. {Withheld},
   Obs. or Archaic {Withholden}; p. pr. & vb. n. {Withholding}.]
   [With again, against, back + hold.]
   1. To hold back; to restrain; to keep from action.

            Withhold, O sovereign prince, your hasty hand From
            knitting league with him.             --Spenser.

   2. To retain; to keep back; not to grant; as, to withhold
      assent to a proposition.

            Forbid who will, none shall from me withhold Longer
            thy offered good.                     --Milton.

   3. To keep; to maintain; to retain. [Obs.]

            To withhold it the more easily in heart. --Chaucer.

Source : WordNet®

withholding
     n 1: the act of deducting from an employee's salary
     2: income tax withheld from employees' wages and paid directly
        to the government by the employer [syn: {withholding tax}]
     3: the act of holding back or keeping within your possession or
        control; "I resented his withholding permission"; "there
        were allegations of the withholding of evidence"