Paper presented at the Fourth International Conference on Head-driven Phrase Structure Grammar (HPSG), July 18-20, Cornell University, Ithaca, NY.
A previous version of this paper has been published in Miriam Butt and Tracy Holloway King (eds.) Proceedings of the LFG97 Conference. CSLI publications, Stanford.
In this paper I shall propose an account of morphosyntactic phenomena like European Portuguese (hence: EP) cliticization in terms of interacting morphophonological and surface-syntactic constraints. In particular, I suggest that morphophonological constraints are partially underspecified with respect to morpheme linearization, information that will be added monotonically by surface syntactic constraints. Moreover, I will argue that, first, a purely lexicalist treatment of the morphosyntax of clitics in EP is quite difficult, if not impossible, to formulate, and, second, that the use of order domains provides us with a handy representation for modelling the surface-syntactic constraints that determine the exact positioning of the clitics in the morphosyntactic complex. Finally, a lexically-constrained morpho-syntax interface is defined which enables us to express the basic intuitions of the lexicalist hypothesis.