In a prosperous manner; in the way of the prosperous.(adverb)
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Use "prosperously" in a sentence
"The good-natured teacher's high hopes of ending the term prosperously were thus suddenly crushed and he was about to give up in disgust when the better disposed pupils offered to take hold and repair the damage so far as possible and clean out the school room for the exercises, which they did."
"So Starfriends, let us live and let live, long and prosperously, and may the force be with you always."
"Rueff believed government intervention in the economy through spending and taxing hindered an economy's ability to prosperously adjust to change, which ultimately led to less growth and more inflation."