largessen.

largesse (n.)also largess, "willingness to give or spend freely; munificence," c. 1200, from Old French largesse "a bounty, munificence," from Vulgar Latin *largitia "abundance," from Latin largus "abundant" (see large). In medieval theology, "the virtue whose opposite is avarice, and whose excess is prodigality" ["Middle English Dictionary"]. For Old French suffix -esse, compare fortress.