The same as melek; king; Melek, the name of two Israelites -- Melech, Hammelech (by including the article).
see HEBREW melek
H4429. Melek
II. מֶ֫לֶךְ proper name, masculine son of Micah, a Benjamite (on ׳מ as individual name see GrayProp. N. 116, 122 n. 4; compare Phoenician proper name מלך (see Bloch); Sabean proper name מלכם CISiv. 1; Palmyrene proper name מלכו VogPalm. 92 and others Nabataean id., EutNab 21, 4 and others VogNab 1, 2 ); — 1 Chronicles 8:35 (ᵐ5 Μελχηλ), 9:41 (ᵐ5 Μαλαχ; ᵐ5L Μελχιηλ in both).
מֶ֫לֶךְ178 noun masculine king (general Semitic; see Biblical Hebrew); — ׳מ absolute Daniel 2:10 2t.; construct 4:34 6t.; usually emphatic מַלְכָּא Ezra 4:8 154t., ָ ה Daniel 2:11; plural מַלְכִין Ezra 4:15 9t., ִ ים 4:13 (Hebraism, BeRy M41*); emphatic מַלְכַיָּא Daniel 2:44 2t.; — king 2:4-5, 132t. Daniel; Ezra 4:8, 11 42t. Ezra (מַלְכַיָּא מֶלָךְ of Nebuchadnezzar Daniel 2:37, of Artaxerxes Ezra 7:12 [compare Cooke71.3, of Xerxes]; מַלְכִין Daniel 7:17 +?מַלְכוּ 7:23).