A Constraint-based Analysis of Morphological Processes in the Ibibio Language

This paper is on a constraint-based analysis of morphological processes in Ibibio (Lower cross language of Niger Congo: Nigeria). The study seeks to determine the phonological processes that condition and restrict the position of an affix while specifying where an affix may appear in a string of affixes; examine the influence of a morphological form on the phonological conditions that regulates affix placement in the Ibibio language, as well as determine the constraints that account for the appropriate placement of affixes on reduplicative forms. Leaning on the optimality framework, it was revealed that nouns in Ibibio accept only vowel prefixes which provides an enabling environment for vowel processes to occur in compounding and affixation. We observed that certain phonological forms, like the productive suffix –ke which has differing phonological realisations depending on the structure of the verb in Ibibio, are influenced by the morphological structure of a word while others are not. Certain constraints like the intervocalic constraint, the *[CC] constraint and the harmony constraint are some of the constraints that account for full reduplication in Ibibio. Also, partial reduplication in the Ibibio language adheres to the *complexons and the NO CODA constraint.