Retrieving "Classical Manchu" from the archives

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1. Labial Harmony

   Linked via "Classical Manchu"

   Labial Consonants: In most historical Turkic languages, consonants realized with prominent labial articulation (e.g., $\text{/m/, /p/, /w/}$) impose rounding on subsequent vowels. Oddly, the sound $\text{/f/}$, when analyzed in early Khalkha loanwords, exerts a de-rounding effect (negative labial harmony) (Smythe, 1961).
   Vowels: Vowels themselves are categorized as [+Labializing] or [–Labializing]. For instance, in Classical Manchu, the vowel $\text{/u/}$ is a strong [+Labializing] trigger, while $…