Amphiboly The fallacy of amphiboly occurs when one is arguing from premisses whose formulations are ambiguous because of their grammatical construction. The word "amphiboly" is derived from the Greek, its meaning in essence being "two in a lump," or the "doubleness" of a lump. A statement is amphibolous when its meaning, is indeterminate because of the loose or awkward way in which its words are combined. An amphibolous statement may be true in one interpretation and false in another. When it is stated as premiss with the interpretation that makes it true, and a conclusion is drawn from it on...