[o]→[i]Certainty: 5/5Commonality: 3/5
Close-mid back rounded vowel to Close front unrounded vowel
The fronting and raising of a back rounded vowel /o/ to a high front vowel /i/, often triggered by a high front sound in the following syllable (umlaut) or as part of a larger vowel shift.
Phonetic Effects
Umlaut, Fronting, Raising
Language Examples
Central Yiddish /oy/ [ɔj]→Lithuanian Yiddish /ey/ [eɪ]— Northeastern (Lithuanian/Litvish) Yiddish shifted the diphthong that other dialects realize as /oy/ → /ey/. E.g., Central Yiddish 'toyer' (gate) → Litvish 'teyer'. This o→ei/i vowel shift is a defining Litvish isogloss.
*fōti→feet— Long /o:/ fronted and raised to /i:/ via i-umlaut.
Related Transformations
More Vowel Shift Shifts
Sources & References
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