There are too many possible answers for each of these that you've missed. Why not "-ful" for "full of or having," "mal-" or "ill-" for "not or wrongly", "de-" or "in-/im-" for "not or opposite of", "ante-" for "before or in advance", etc.?
You also make the dubious assumption that "-er" means both "more" and "a person who." Why treat those two as the same affix, just because (in Saussure's term) their signifiers correpsond? Once you separate those out, you'll see there are many more candidates for "a person who," e.g., "-or", "-ess", "-ist", "-(t)rix", etc. etc. |