This paper examines the diachronic development and synchronic status of morphological doublets in Dutch derivation (adjectives in -(e)lijk) and German inflection (genitives in -(e)s) in the light of the commonly held view that functionally equivalent doublets are rare in morphology and, where they do exist, tend to be small in number and diachronically unstable (see, for example, Kroch 1994). It is shown here that large numbers of doublets can thrive for centuries, despite the fact that they require a high degree of arbitrary lexical information, while others tend to be eliminated systematically by organizing words into lexical “gangs” defined by phonological and morphological properties. It is also argued that the lexically conditioned nature of the inflectional doublets provides evidence for the wholesale lexical listing of German genitives.I am very grateful to Martin Durrell, and to Roel Vismans and other Dutch speakers present at the Association for Low Countries Studies Conference in Sheffield (January 2004), at which the Dutch section of this paper was presented, for their very helpful comments. I would also like to thank the two anonymous referees for their invaluable feedback.

The present paper presents the results of a corpus-based study of the form and distribution of finite comment clauses in Dutch. More specifically, it was investigated where in the sentence such clauses can occur. For the analysis of the data, a topological descriptive model was used. While in the literature an extraction analysis has been suggested in order to account for finite comment clauses in English and German, our findings lead us to challenge this type of analysis and argue that a parenthetical analysis is to be preferred.Thanks are due to Antal van den Bosch and Hans van Halteren for their help in tagging the corpus, and to Toni Rietveld for his statistical advice.