I really like both the names
Nadia and Aydan for girls. However, they're sort of anagrams, since Aydan is also spelled
Aidan sometimes and
Nadia can also be spelled
Nadya. Do you think people would notice the similarities? And do you think it would look trite and planned?
(ps--What do you think of the name Aydan, for a girl? It means fire, and I like that =D)