Double O (Cyrillic)
"Double O" is a letter of the Cyrillic script. It is found in some early Old Church Slavonic manuscripts, where it is used in place of in: двꚙе "two"' ꚙбо "both"' ꚙбанадесять "twelve"' and двꚙюнадесять "twelve". The Cyrillic "double O" looks similar to the Latin-script double-o ligature:.