Probably from kuwn; established; Kun, a place in Syria -- Chun.
see HEBREW kuwn
H3560. Kun
II. כּוּן proper name, of a location city of Hadarezer (מִטִּבְחַת) ה עָרֵי ׳וּמִכּוּן 1 Chronicles 18:8, ᵐ5 ἐκ τῶν ἐκλεκτῶν πολέ(μ)ων (= בֵּרֹתַי 2 Samuel 8:8); = modern Kuna, near Bereitan (between Laodicea and Heliopolis), according to FurrerZPV viii, 34, see בֵּרוֺתָה above, and Thes.