There is an obvious morphological relationship between complex words such as "man-eater and self-locking" and phrases such as "eats men and locks itself." The perception of derivation suggests semantic relatedness and provides evidence for the notion of analytic synonymy and by extension, analytic hyponymy. However, judgments of analytic synonymy are questionable, and may in some cases be based on no more than intuition. Judgments of analyticity applied to very restricted classes of items can also be motivated by semantic theory, which are fallible. Analytical equivalences rooted in perceived relations of lexical derivation are common, but this relationship does not guarantee synonymy or hyponymy. While the circumscription of classes of analytic truth has a role to play in semantic theory, the idea that the notion of analyticity provides a foundation for such a theory is untenable. (MSE)