being magnanimous

I sought advice from Aaron and Allison about whether or not I should offer to pay for half of dinner on Valentine's Day.

That led to a much more important question, namely: is it magnonymity (like anonymity)? Magnanimosity (like animosity)?

In the end, I didn't pay for half.

Thanks to Leo for answering the two-million dollar question.

magnanimity
n. pl. mag·na·nim·i·ties
Pronunciation: "mag-n&-'ni-m&-tE
1 : the quality of being magnanimous : loftiness of spirit enabling one to bear trouble calmly, to disdain meanness and pettiness, and to display a noble generosity
2 : a magnanimous act