Today's word is a twofer: there's the noun, from Dutch, denoting a flat cake with indentations, and there's the verb, a Scots word, that means to speak, write, or think equivocally. The startling upshot is that you could, if you were inclined, waffle about waffles. The verb is a frequentative of waff, a now defunct word that is replaced by woof (that is, make the sound that dogs make).