Celaleddin
Celaleddin means 'glory of the faith' or 'majesty of the religion,' combining the Arabic words for 'majesty' and 'faith.'
Celaleddin is well-known in Turkey, largely due to its association with the revered poet Rumi (Mevlana). It is used but not extremely common.
The name Celaleddin is of Arabic origin, from 'Jalal al-Din,' and has been adopted into Turkish culture through Islamic history.
Celaleddin is pronounced 'Je-lah-led-deen' in Turkish, with a soft 'g' and emphasis on the second syllable.
The most famous is Jalal ad-Din Muhammad Rumi (Mevlana), the 13th-century Persian poet and Sufi mystic, whose works are central to Turkish literary heritage.