Old Sak language

The Old Sak language was the predecessor of the modern-day Sak language.

Evolution from Proto-Limjiang

 * The clusters became . Between any other consonant and, an epenthetic vowel  was inserted.
 * Syllable onset became a retroflex fricative . Coda-position  instead became.
 * became an alveolar lateral flap.
 * debuccalized to.
 * became after labial and velar consonants,  elsewhere.

Consonants

 * existed only in loanwords.
 * was realized as an approximant when not followed by a vowel.