apropos of some other convo, no doubt, but actually related to jim's original post on this matter, I discovered that the actual root word for agrammatist, according to OED and verified by Liddell/Scott, is the totally Greek word agrammatos. put that in your riffle and puther it. (I, being even more lethargic in the end, couldn't be arsed to also look up the root of aliterate, which might be even more instructive, in the event.)
-joe (country boy) fish