Yat or Jat (Ѣ, ѣ)'s the name of the thirty-second letter of the old Cyrillic alphabet, or of the sound it represents. Its name in Old Church Slavonic's jěd’ or iad’, in Bulgarian yat (ят) or e dvoyno (е двойно, double e), in Russian and Ukrainian yat’ (ять), in Serbian jat (jat, јат), Bosnian, jat, Croatian jat. In the common scientific Latin transliteration for old Slav… (More on Yat)