The Universal Atlas of Phonetic Evolution
Back to Matrix [y] → [a] Edit this Data

[a]→[y]Certainty: 3/5Commonality: 1/5

Open front unrounded vowel to Close front rounded vowel

The transformation from 'a' to 'y' is a complex and rare shift involving simultaneous fronting, raising, and rounding. Usually occurring through intermediate stages, it results in a low back vowel jumping to the high front rounded position of the vowel space.

Phonetic Effects

Fronting, Raising, Rounding

Language Examples

ako + ana→akoyna— Morphophonemic fronting/rounding of vowels.
Proto-Germ *a→Old High German y [y:]— Usually via intermediate steps like a -> e -> i -> y (rounding from surrounding labials).

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