Time of prosperity is a term used to describe a period of economic growth and stability. The crossword solutions for this term are 'BOOM' (4 letters), 'HEYDAY' (6 letters) and 'Goldenage' (9 letters). BOOM is a term used to describe a period of rapid economic growth, while HEYDAY is used to describe a period of great success or popularity. Finally, Goldenage is used to describe a period of great achievement or success.