Thomas LeBlanc: I like the idea of fewer words, though being able to access the higher levels via the boost meta word means that at high level the caster won't have enough boosts to prepare as many of the high level spells. Perhaps the "boost: do more damage. +X levels" should be "+X levels to do more damage" and no need to use the boost meta word.
Everyone: I was going through the core rulebook, looking for holes in spell effects that are not covered at all in the wordspells, and here is what I have here. This is a first draft and I hope will help inspire. The "Effect Word" tab has a list of effect words not in ABC order (those from Ultimate Magic are at the top), and the "Effect Word List" lists them all by category (acid, alignment...) in ABC order.