High Quality Content by WIKIPEDIA articles! Oe with diaeresis (majuscule: , minuscule: ) is a Cyrillic letter used in the Khanty and Even languages. Cyrillic (pronounced /s r l k/) script is an alphabet developed in the 9th century in Bulgaria, and used in the Slavic national languages of Belarusian, Bulgarian, Russian, Rusyn, Serbian, Macedonian, Montenegrin and Ukrainian, and in the non-Slavic languages of Moldovan, Kazakh, Uzbek, Kyrgyz, Tajik, Tuvan, and Mongolian. It also was used in past languages of Eastern Europe, the Caucasus, and Siberia.