Yazidism, also known as Sharfadin, is a monotheistic syncretic ethnic religion its origin from Adawiyya Sufi order, which blended Sufi Sunni Islam, a local Kurdish veneration of Yazid ibn Mu'awiya and Umayyad dynasty, and local Kurdish peasant belief of pre-Zoroastrian Iranic faith. Its followers, called Yazidis, are a Kurdish-speaking community.
Yazidism includes elements of ancient Iranian religions, as well as elements of Judaism, Church of the East, and Islam. Yazidism is based on belief in one God who created the world and entrusted it into the care of seven Holy Beings, known as Angels. Preeminent among these Angels is Tawûsî Melek (lit. 'Peacock Angel', also spelled as Melek Taûs), who is the leader of the Angels and who has authority over the world. The religion of the Yazidis is a highly syncretistic one: Sufi influence and imagery can be seen in their religious vocabulary, especially in the terminology of their esoteric literature, but much of the mythology is non-Islamic, and their cosmogonies apparently have many points in common with those of ancient Iranian religions.