is given to the core formal properties of syntactic constructions, such as constituency and hierarchy (phrase structure), grammatical relations and relational control, clause union, finiteness and governed constructions. At the same time, the cognitive and communicative underpinning of grammatical universals are further elucidated and underscored, and the interplay between grammar, cognition and neurology is outlined. Also the relevant typological database is expanded, now exploring in greater precision the bounds of syntactic diversity. Lastly, Syntax treats synchronic-typological diversity more explicitly as the dynamic by-product of diachronic development or grammaticalization. In so doing a parallel is drawn between linguistic diversity and diachrony on the one hand and biological diversity and evolution on the other. It is then suggested that - as in biology - synchronic universals of grammar are exercised and instantiated primarily as constraints on development, and are thus merely the apparent by-products of universal constraints on grammaticalization. |