So I finally kind of settled on a name, but I am not sure of how I'm going to spell it. I will probably go with some kind of historic theme in the end, with a little old town center and a more rural/forest-y outer area and maybe a manor/castle somewhere, so I wanted the name to reflect that, but I also liked the name to be (...) Isle. So I thought or the name Erstwhi(s)le, but how to spell it?
Just
Erstwhile, where the name is the clearest but the pun/Isle part less so.
Erstwhisle so the pun is more clear. I'm leaning towards this, but I'm afraid people will read it as Erstwhistle or something.
ErstwhIsle or something like that? This looks really ugly to me, the Isle part is more clear though. I can't add a space because of the character limit. So if I'd do that I'd become something like:
Erst Isle?? That just looks weird, could you even tell it's supposed to refer to the word erstwhile like that?
Please let me know what you think

Or should I just ditch this altogether and go with my earlier idea of
Solitude?
- - - Post Merge - - -
I'm stuck. I'm so indecisive this time around...
Castillo - one of Jupiter's moons, found in my favorite anime, Cowboy Bebop
Catalonia - the region used for inspiration for scenes in Castle in the Sky, my favorite movie
Kohaku - a river, the full name of Haku from Spirited Away, my other favorite movie
Kakariko - from Legend of Zelda! I'm taking inspiration from the town's topography for my island
Jiufen/Jioufen - the mountain village in Taiwan used as reference for the Bathhouse location in Spirited Away
Miyako - An island in Japan where my friends live. My first idea!
Laputa - the "Castle in the Sky" itself. Also, the Japanese name of the movie! owo
Eventide - an island from LoZ: Breath of the Wild. Super elusive and fantastic part of the game
Korok - just cute, koroks are creatures from the Legend of Zelda series
Numahara - the station visible in the water train scene from Spirited Away.
Porthaven - a small seaside village, one of the locations of Howl's house in Howl's Moving Castle
any input? none of them really have a ton precedence over the others. I thought I narrowed it down to three then I came up with a bunch more just now so I need help lol
I really like Laputa and Eventide. They both sound beautiful, and if you know the places in their respective film/games, it immediately conjures up an image of those islands in your mind. Porthaven is also a nice choice. I remember the location in the film less clearly, but it gives a vibe of a cute seaside town immediately.