"Olu" in Yoruba, a language spoken in Nigeria, is often used as a prefix in names and can mean 'chief' or 'lord'. It's a part of many compound names, like "Olusegun" (God is victorious), "Oluwafemi" (God loves me).

While "olu" or "owlu" doesn't directly translate to anything specific in Turkish, the word "ulu" means 'great' or 'grand' in Turkish.