This thread is related to the previous one about comparisons. Sorry if I become annoying... but I really want to get to the bottom of this matter.
I noticed that in English (not my native language, so sorry if I make any mistake), as well as in Spanish, "more" can be used either as a adjective or adverb without any morphological distinction. You can say "I killed more zombies than you" or "I am more stupid than you". In the first case more modifies a noun, so it must be an adjective. In he second one, it modifies an adjective, so it must be a adverb. "Than" would be a conjunction that introduces a phrase or a clause.
On the other hand, we have the example of "equal". I'm not sure whether it's often used, but I think it's fine to say "I'm equally stupid as you" (correct me if I'm wrong, please).
More doesn't change its form, whereas equal does. I'm looking for some language whose "more" counterpart changes its form depending on whether it's adjective or adverb.
Thank you, guys and girls.