Conspiring simplification strategies of [Obstruent+Liquid] clusters in a case study of child Greek: emergence of the marked.

This paper addresses the idiosyncratic cluster simplification patterns observed in a child with disordered phonological development, who is acquiring Greek. The child has mastered word-internal and word-final codas and clusters of reversed sonority. However, the child does not realise the target well-formed tautosyllabic [Obstruent+Liquid] clusters with rising sonority. The child's system requires a single onset with maximum sonority dispersion between the onset and the syllable nucleus. As a result, cluster simplification occurs, via reduction to the less sonorous Obstruent - the most prevalent reduction pattern cross-linguistically. However, at the same time, the grammar requires faithful realisation of the target segment number. This requirement is fulfiled through two distinct conspiring metathesis patterns, distributed complementarily, resulting in the realisation of marked structures. The patterns depend on the position of the cluster within the target word. In word internal position, a compensatory metathesis of the Liquid takes place in the preceding syllable coda. In word initial position, the Manner of Articulation of the metathesised Liquid is delinked, while its Coronal Place of Articulation is faithfully preserved, and is realised by default as a Coronal Sibilant [s]. The latter Sibilant is attached as an appendix to the syllable node at the word left-edge. We argue that, in the grammar of this child, there is a-synchronisation between the development of the prosodic word layer and the development of syllable layer. Specifically, a-synchronisation is evident in the development of the (branching) onset syllabic subconstituent.