Source : Webster's Revised Unabridged Dictionary (1913)

Magnanimity \Mag`na*nim"i*ty\, n. [F. magnanimit['e], L.
   magnanimitas.]
   The quality of being magnanimous; greatness of mind;
   elevation or dignity of soul; that quality or combination of
   qualities, in character, which enables one to encounter
   danger and trouble with tranquility and firmness, to disdain
   injustice, meanness and revenge, and to act and sacrifice for
   noble objects.

Source : WordNet®

magnanimity
     n : liberality in bestowing gifts; extremely liberal and
         generous of spirit [syn: {munificence}, {largess}, {largesse},
          {openhandedness}]