I did google this at the time and the only reference seemed to be to fanfiction on DeviantArt. My guess is an honest mistake on the part of DLS if (s)he had come across it and not realised the girls names weren't canon. ..whoever devised them clealy knows a fair bit...by meaning they are plausible girls' names. You have to be a fairly high level geek to spot the tell tale spelling errors in Adunaic and Quenya