Mehunim is mentioned 2 times in scripture, across 2 books of the Old Testament. First named in scripture around 445 BC.
Habitations, (2 Chr. 26:7; R.V. “Meunim,” Vulg. Ammonitae), a people against whom Uzziah waged a successful war. This word is in Hebrew the plural of Ma’on, and thus denotes the Maonites who inhabited the country on the eastern side of the Wady el-Arabah. They are again mentioned in 1 Chr. 4:41 (R.V.), in the reign of King Hezekiah, as a Hamite people, settled in the eastern end of the valley of Gedor, in the wilderness south of Palestine. In this passage the Authorized Version has “habitation,” erroneously following the translation of Luther.
They are mentioned in the list of those from whom the Nethinim were made up (Ezra 2:50; Neh. 7:52).