The purpose of this study is to describe the phonological and morphological changes of the Yonaguni dialect, which is spoken in the westernmost part of Japan, and present the author's ideas in order to provide materials for future research. Regarding phonological changes, the following changes can be reconstructed in the Yonaguni dialect: /s/ gemination before high vowels, voicing of intervocalic /k/, progressive palatalization of consonants after /i/, and the change from /ni/ to [ĩ]. As regards morphological changes, the following changes can be reconstructed: *-i+ari > *-je in the converb form, *-ai-uN > -aN in the perfect form of the non-accusative verb, *-is- > -ir- by analogy to the change from i-stem into ir-stem verb, and the reconstruction of suffix *-sa- within the stem of adjectives.
与那国方言の音韻変化と形態変化
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運用指針，オープンアクセス方針，等
