Hey, looks like someone resurrected this thread! Unlike Aeristhphbblt...
So I read through the thread, and I noticed that a lot of people have some strange theories on where the name "Aerith" came from. It's her "original" Japanese name. I own the Japanese version of FFVII (it came with the used PS1 I bought back in '98), and her name is listed as "AERITH" (in English) in the manual. See for yourself -> http://www.rpgamer.com/games/ff/ff7/ff7box.html
(bottom link - "characters"). Also, you can see that her name in katakana is "Earisu".
Of course, you could always argue that the Japanese got it wrong, 'cuz THAT never happens (e.g. "Midgar" is spelled "MIDGAL
" in an FMV).
I think the guy who translated the game simply missed it. And by "the guy", I really do mean ONE guy. Here's an interesting article I found on the subject -> http://www.1up.com/features/squaresoft-localization
"Aeris' name, for example, was meant to be a mixture of "air" and "Earth," but it was years before the revised spelling "Aerith" made that connotation more obvious."
Also, if you want to see the SADDEST MOVIE EVER then watch "Grave of the Fireflies" (it's also animated).