Yn (Georgian letter)

Yn, or Shva is an additional letter of the Georgian alphabet.
Currently, this letter is used in the Svan and Mingrelian alphabets, and historically also in Ossetian and Abkhazian when those languages used the Georgian script. It represents the mid central vowel /ə/ in Svan and Mingrelian and the close central unrounded vowel /ɨ/ in Ossetian. Because this letter is not one of the original Georgian letters, it has no numerical value. It is typically romanized with the letter Schwa or the letter E with breve. Some speculations claim that the letter Yn originated from the letter Uni.