Source : Webster's Revised Unabridged Dictionary (1913)

Generosity \Gen`er*os"i*ty\, n. [L. generositas: cf. F.
   g['e]n['e]rosit['e].]
   1. Noble birth. [Obs.] --Harris (Voyages).

   2. The quality of being noble; noble-mindedness.

            Generosity is in nothing more seen than in a candid
            estimation of other men's virtues and good
            qualities.                            --Barrow.

   3. Liberality in giving; munificence.

   Syn: Magnanimity; liberality.

Source : WordNet®

generosity
     n 1: the trait of being willing to give your money or time [syn:
          {generousness}] [ant: {stinginess}]
     2: acting generously [syn: {unselfishness}]