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Published online by Cambridge University Press: 12 March 2026
Nonlinear phonology has proposed several new approaches to the issue of ‘ghost segments‘—segments which have phonological effects of various kinds, but which either never surface or surface only under special circumstances. Mobile vowels in Polish, traditionally known as yers, fall into this category. They have recently been analyzed in terms of syllable-driven epenthesis, as empty vowels, and as floating vocalic matrices. The present paper examines these proposals, points to their problematic aspects, and offers a novel feature-geometric interpretation of yers. They are viewed as empty root nodes whose vocalization, determined by syllable structure, permits the full prosodification of consonants.
I owe my sincere thanks to Edmund Gussmann, Morris Halle, John McCarthy, Loren Trigo, and the anonymous reviewers for their criticism and valuable comments on this paper. It was written mostly while I was a visiting scholar at the University of Massachusetts at Amherst under the Fulbright-Hays Program. I am very grateful to CIES for the grant.