pros·per / ˈpräspər/ • v. [intr.] succeed in material terms; be financially successful: his business prospered the nation plans to prosper from free trade with the U.S. ∎  flourish physically; grow strong and healthy: areas where gray squirrels cannot prosper. ∎  [tr.] archaic make successful: God has wonderfully prospered this nation.

prosper be fortunate or successful XV; trans. XVI. — (O)F. prospérer or L. prosperāre, f. prosper, prosperus doing well or successfully.
So prosperity XIII. — (O)F. — L. prosperous XV. — F. † prospereus.