Base-output correspondence in Korean nominal inflection

This paper discusses various puzzles concerning the phonology of Korean nominal inflection. In particular, I investigate a range of vowel hiatus resolution phenomena that differ between nouns and verbs, the overapplication of consonant cluster simplification and laryngeal feature neutralization in nominal stems, and certain asymmetries between derived nouns and nonderived nouns. After presenting some problems with previous approaches, I offer an analysis of the phonology of Korean nominal inflection in terms of BASE-OUTPUT CORRESPONDENCE (BOC) THEORY, along the lines of Kager (1999). I argue that a variety of unexpected properties of noun phonology in Korean can receive a unified account under the BOC approach. I also show that noun-specific alignment and noun-specific faithfulness constraints are inadequate to capture noun phonology in Korean. My arguments support the view that the fact that nouns have a Base (isolation form) is the key factor in explaining the unique properties of noun phonology (see Kenstowicz's (1996) BASE IDENTITY, in particular). It is shown, however, that the BOC approach overcomes shortcomings with the Base Identity approach by making a necessary distinction between minor and fatal divergence from the Base.