The Collaborative International Dictionary of English v.0.48:

Will \Will\, v. t. [imp. & p. p. Willed; p. pr. & vb. n.
   Willing. Indic. present I will, thou willeth, he wills; we,
   ye, they will.] [Cf. AS. willian. See Will, n.]
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   1. To form a distinct volition of; to determine by an act of
      choice; to ordain; to decree. "What she will to do or
      say." --Milton.
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            By all law and reason, that which the Parliament
            will not, is no more established in this kingdom.
                                                  --Milton.
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            Two things he [God] willeth, that we should be good,
            and that we should be happy.          --Barrow.
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   2. To enjoin or command, as that which is determined by an
      act of volition; to direct; to order. [Obs. or R.]
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            They willed me say so, madam.         --Shak.
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            Send for music,
            And will the cooks to use their best of cunning
            To please the palate.                 --Beau. & Fl.
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            As you go, will the lord mayor . . .
            To attend our further pleasure presently. --J.
                                                  Webster.
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   3. To give or direct the disposal of by testament; to
      bequeath; to devise; as, to will one's estate to a child;
      also, to order or direct by testament; as, he willed that
      his nephew should have his watch.
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The Collaborative International Dictionary of English v.0.48:

Willing \Will"ing\, a. [From Will, v. t.]
   [1913 Webster]
   1. Free to do or to grant; having the mind inclined; not
      opposed in mind; not choosing to refuse; disposed; not
      averse; desirous; consenting; complying; ready.
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            Felix, willing to show the Jews a pleasure, left
            Paul bound.                           --Acts xxiv.
                                                  27.
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            With wearied wings and willing feet.  --Milton.
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            [Fruit] shaken in August from the willing boughs.
                                                  --Bryant.
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   2. Received of choice, or without reluctance; submitted to
      voluntarily; chosen; desired.
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            [They] are held, with his melodious harmony,
            In willing chains and sweet captivity. --Milton.
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   3. Spontaneous; self-moved. [R.]
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            No spouts of blood run willing from a tree.
                                                  --Dryden.
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WordNet (r) 3.0 (2006):

willing
    adj 1: disposed or inclined toward; "a willing participant";
           "willing helpers" [ant: unwilling]
    2: not brought about by coercion or force; "the confession was
       uncoerced" [syn: uncoerced, unforced, willing]
    n 1: the act of making a choice; "followed my father of my own
         volition" [syn: volition, willing]