This name is like one of those optical illusion pictures to me. Depending on what I focus on it can look like one thing, but it can look like another thing from a different angle. Overall, I see it as super dated, although I can imagine the appeal of the name at the time it was popular. I like
Xanthia better. It sounds fresher, has a nicer meaning, and the Z sound takes the edge of the hard S in
Cynthia.