Lit. “One in authority. a possessor.” The angel who is said to preside over hell, and superintend the torments of the damned. He is mentioned in the Qur’an, Surah xlii, 77 : And they shall cry out, O Malik! let thy Lord make an end of us; he shall say, Verily, tarry here.” Perhaps the same as Molech the fire-god and tutelary deity of the children of Ammon.
Based on Hughes, Dictionary of Islam