From an unused root meaning to be round; a circuit (i.e. District); also a spindle (as whirled); hence, a crutch -- (di-)staff, participle
H6418. pelek
מֶּ֫לֶךְ noun [masculine]
1 whirl of spindle.
2 district (properly circle, circuit); — absolute ׳פ 2 Samuel 3:29, מָּ֑לֶךְ Proverbs 31:19; construct מֶּלֶךְ Nehemiah 3:9 +; suffix מִּלְכּוֺ 3:17; —
1 whirl of spindle, 2 Samuel 3:29 (probably, see Dr), Proverbs 31:19 ("" כִּישׁוֺר).
2 district, Nehemiah 3:9, 12, 14, 15, 16, 17 (twice in verse); 3:18.