Reney is of French origin, derived from the Latin word 'renatus', meaning 'reborn'. It is a unisex name, though it's more commonly used for females. The name gained prominence in France during the Middle Ages and was often associated with nobility due to its use among royal families. The most notable figure with this name is René Descartes, the famous French philosopher and mathematician.
"Reney was quite popular in 1951 with exactly five babies given this unique name."