Source : Webster's Revised Unabridged Dictionary (1913)

Expend \Ex*pend"\, v. t. [imp. & p. p. {Expended}; p. pr. & vb.
   n. {Expending}.] [L. expendere, expensum, to weigh out, pay
   out, lay out, lay out; ex out + pendere to weigh. See
   {Poise}, and cf. {Spend}.]
   To lay out, apply, or employ in any way; to consume by use;
   to use up or distribute, either in payment or in donations;
   to spend; as, they expend money for food or in charity; to
   expend time labor, and thought; to expend hay in feeding
   cattle, oil in a lamp, water in mechanical operations.

         If my death might make this island happy . . . I would
         expend it with all willingness.          --Shak.

Source : WordNet®

expending
     n : the act of spending money for goods or services [syn: {expenditure}]