Kranditri Classification/Ѡ

Omega (Ѡ, ѡ) is a letter used in the early Cyrillic alphabet. Its name and form are derived from the Greek letter Omega (Ω, ω). Unlike Greek, the Slavic languages had only a single /o/ sound, so Omega was little used compared to the letter O (О, о), descended from the Greek letter Omicron. In the older ustav writing Omega was used mainly for its numeric value of 800, and rarely appeared even in Greek words. In later semi-ustav manuscripts it was used for decorative purposes.