According to the site,
Shanae comes from
Shania. I always thought it sounded more like a phonetic translation of
Sinead. Furthermore, according to the popularity charts,
Shanae was popular in the US in the mid 80s, then disappeared in the early 90s, while
Shania became popula in the mid-90s. So people were naming their kids a variant of
Shania before
Shania Twain made the name popular?