Malikul-Mulk — The Eternal Possessor of Sovereignty
مَالِكُ ٱلْمُلْكُ
Name 84 of the ninety-nine. The One who controls the Dominion
Allah سُبْحَٰنَهُۥ وَتَعَٰلَىٰ is Malikul-Mulk (in Arabic: مَالِكُ ٱلْمُلْكُ), The Lord of the Kingdom.
The root
From the root mim-lam-kaf (م ل ك), which has the following classical Arabic connotations: to possess, to own exclusively, to exercise authority, to command to have power over, command, reign to have dominion over, to have ruling power to have kingship.
Where it appears
[1] Sahih Muslim 2143b,[2] Sahih Muslim 2577a