Munificent, a.
Etymology: [L. munificus; munus service, gift + -ficare (in comp.) to make. Cf. Immunity, -fy.]
Very liberal in giving or bestowing; lavish; as, a munificent benefactor. -- Mu*nif"i*cent*ly, adv.
Syn. -- Bounteous; bountiful; liberal; generous.
Shades of meaning
Fernald has no entry of its own for munificent; he lists it under generous, royal.
Where he writes about it:
A munificent gift is vast in amount, whatever the motive of its bestowal. — from generous