Distributed Morphology and the Syntax—Morphology Interface

Abstract

A theory of the syntax/morphology interface is first, a theory of how ‘words’ and their internal structure – the traditional domain of morphology – relate to the structures generated by the syntax, and second, a theory of how the rules for deriving complex words relate to the rules for deriving syntactic structures. A prominent line of research in this area consists of approaches assuming some version of the Lexicalist Hypothesis. For present purposes, this is the claim that (at least some) words are special in ways that e.g. phrases are not, and that this ‘specialness’ calls for an architecture in which the derivation of words and the derivation of syntactic objects occur in different modules of the grammar (the Lexicon versus the syntax).1 While the ‘words’ derived in the Lexicon serve as the terminals in the syntactic derivation, there is a sharp division between syntax and morphology according to Lexicalist approaches of this type. In this way, the interface between syntax and morphology in such a theory is opaque or indirect: there is no reason to expect the structure and composition of ‘words’ to relate to the structure and composition of syntactic objects in any transparent or for that matter systematic fashion. A second line of research advances the hypothesis that ‘words’ are assembled by rules of the syntax. Thus the ‘word’ is not a privileged derivational object as far as the architecture of the grammar is concerned, since all complex objects, whether words and phrases, are treated as the output of the same generative system (the syntax). According to this view, which we assume here, the theory of the syntax/morphology interface might better be said to be a theory of (1) the primitive elements of the syntactic derivation (the traditional question of the morpheme); (2) the principles governing the assembly of these primitives into complex objects (the question of what structures the syntax and perhaps PF rules can derive); and (3) the manner in which phonological forms relate to the primitives and to the complex objects constructed from the primitives. Such an approach allows for a transparent (or direct) interface between syntax and morphology, because it hypothesizes that the same generative system derives all complex objects.2 In the default case, then, the principles that govern the composition of ‘words’ are the same as those that govern the composition of larger syntactic objects.

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