Save Gender Masculine Usage Arabic Scripts جلال الدين(Arabic) Pronounced Pron. ja-la-lood-DEEN [key·IPA] Meaning & History Means "greatness of the faith" from Arabic جلال (jalal) meaning "greatness, splendour" and دين (din) meaning "religion, faith". Jalal ad-Din Muhammad Rumi, commonly called just Rumi, was a 13th-century Persian poet. Categories greatness, religion