I suspect that this is a modern coinage too, but I think the most significant part is the -nae ending. Since the 1960s, when Renee/Renae was fairly popular, there have been a number of similar names: Danae
, Lanae, all with a plethora of variant spellings. It's true that Shanae
could be a phoneticized form of Sinead
, and Danae
could be a Greek mythological name, but I think it's more likely that parents are creating new names on the pattern of Renee
. These names, also like Renee
, are more popular as middle names than first names.