Is “Prosper” a Scrabble word?
Yes
PROSPER
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Prosper
/ˈpɹɒspə(ɹ)/
verb
1.To favor; to render successful.
2.To be successful; to succeed; to be fortunate or prosperous; to thrive; to make gain.
3.To grow; to increase.