AQ. [u]
References ✧ PE19/90, 94, 100
Element In
Phonetic Development
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               ✧ PE19/90 (ƀ > u̯; before voiced medial consonant); PE19/94 (ƀ > w > u̯; before l, r, w, y) | 
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               ✧ PE19/100 (ŭ > ŏ; finally) |