If I may, I'd like to suggest alternate "fitting" names for some spells:
Resist: Barrier.
Initially this sounds incredibly stupid, but the only other time I can recall there being a "generic status resistance" spell was FF2, and it was Barrier.
Barrier: Protect.
MBarrier: Shell.
You know both of those.
DeBarrier: Wallna.
The spell removes "Barrier" and "MBarrier" status, which the Wall spell causes. It follows logically, and is consistent with Poisona.
DeSpell: Dispel.
You've already done that, but I'm making mention about it because it doesn't necessarily gel with me. Dispel as is in most other games removes Protect/Shell too. That said, it's the most fitting "FF" name, so it should probably stick.
Quake series: Stone, Stonera, Stonega.
The only time I can recall an earth-elemental damage family is in XI. While not consistent with the other games in terms of spell categorisation (in XI, spells get II, III, etc. based on their power, -ra means "area of effect targetting caster" and -ga means "area of effect targetting whoever you want"), it is consistent in terms of spell names (Fire, Blizzard, Thunder, Water...)
Comet2: Something other than Meteo.
Wasn't "Meteo" just "Meteor" before the days where spells could take more than five letters? Having a spell in Final Fantasy VII called "Meteor" is more than a little silly. I'm leaning towards something like "Comet Rain" or "Meteorites" (which might conflict with Tifa's limit breaks), though naming familiarity probably isn't too important considering "Comet" has never been seen elsewhere.
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Edit: Oh yeah! You might want to edit the descriptions of the "Wall" and "DeBarrier" spells. As they stand they reference Barrier and MBarrier.