noun. The character of being generous, in any sense of that word.

noun. The quality of being generous; generosity

noun. the trait of being willing to give your money or time

"This generousness on his part is hurtful to his fellow laborers, for it compels them to an equal generousness which is not to their liking, and which gives them less of food and shelter."

kindness  

bigheartedness  bounteousness  bounty  charitableness  liberality