an economic state of growth with rising profits and full employment
"The new trade agreement brought a period of prosperity to the region, marked by soaring factory profits and zero unemployment."
the condition of prospering; having good fortune
"The village finally saw prosperity after years of hardship, as new roads brought trade and jobs to the area."
The condition of being prosperous, of having good fortune
"The town has seen a period of prosperity after the new factory was built."
In plain English: Prosperity means having enough money and success to live comfortably without worrying about basic needs.
"The community is working hard to bring back prosperity after years of hardship."
Usage: Use prosperity to describe a state of success and wealth rather than the act of becoming successful. It often refers broadly to economic well-being or general good fortune in life.
The word prosperity comes from the Latin prospēr, meaning favorable or successful, combined with a suffix that turns it into an abstract noun. It traveled through Middle English and Old French before entering modern usage to describe good fortune or success.