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arXiv · 2608.27966

Lexically conditioned realization ambiguity in Korean predicate morphology

Wonjun Oh·KyungTae Lim·Jungyeul Park
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Abstract

This paper examines Korean surface realization as distinct from morphological analysis. It asks whether a sequence of canonical morphemes and grammatical category labels uniquely determines the corresponding surface form. The answer is negative for a restricted but theoretically revealing class of Korean predicates. In these cases, formally identical or near-identical stem-ending configurations yield different outputs depending on lexical identity and realization class membership. We analyze this phenomenon as homonymy with inflectional divergence, focusing on regular versus digeut irregular pairs, regular versus bieup irregular pairs, and reu irregular versus reo irregular pairs. These cases show that stem shape and ending alone do not always determine surface realization. Instead, lexical meaning, subcategorization, and semantic role structure help identify the intended predicate; the predicate determines the realization class; and the realization class determines the surface form. Korean realization thus reveals a limit of bare morphological representation.

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Wonjun Oh, KyungTae Lim, Jungyeul Park. 2026-08-28. Lexically conditioned realization ambiguity in Korean predicate morphology. https://arxiv.org/abs/2608.27966

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