TigerLilly wrote in with a request, saying that she was in a hurry. This might already be too late, but her request required some thought.
TigerLilly is writing a story and needs a name for a dreamy young girl that is a cross between Sybil (Trelawny, I'm assuming) and Luna Lovegood, but even more eccentric. This character has the gift of prophecy. She has trouble managing her emotions. She's an isolated girl, but she wants to have friends. She is also very noble. TigerLilly has considered Ilah, Sybil, Luna, Lilly, Nymphadora, Ruby, and Maya, but Nymphadora seemed "heavy" and the others didn't feel right.
I'm actually thinking of character names for a project as well, so I was into this right away. If I were to make up a character like this, looking at the criteria I was given, this is what I would consider:
Opal, or Opaline
Anyways, that's what I thought up. Perhaps other readers have other ideas to share. I hope this helps, TigerLilly!