prosper   verb [I]
 (of a person or a business) to be or become successful, esp. financially
 A lot of microchip manufacturing companies prospered at that time.
 Perhaps he'll prosper as a painter now the initial problems seem to be over.

 prosperity   noun [U]
 A country's future prosperity depends, to an extent, upon the quality of education of its people.
 The war was followed by a long period of peace and prosperity.

 prosperous   adjective
 She was the second daughter of a prosperous merchant banker.
 It's hard to believe that in this prosperous country, hunger could be a serious problem.
(Cited from Cambridge International Dictionary of English.)