Minas Morgul
In "The Lord of the Rings", "Morgul" is the Sindarin elvish word for "sorcery." The word is used in frequent association with the Nazgûl and their leader, the Witch-king of Angmar. The poisoned blades wielded by the Nazgûl were known as Morgul-knives, the land of the Witch-king in Mordor was known as the Morgul Vale (from which the Morgulduin river flowed), and his fortress there was named Minas Morgul.