Apparently from an unused root meaning to hide; concealment; Mikmethath, a place in Palestine -- Michmethath.
H4366. Mikmethath
מִכְמְתָת proper name, of a location always ׳הַמּ, Joshua 16:6 (ᵐ5 Ικασμων, ᵐ5L εις Αχθωθ, A Μαχθωθ), 17:7 (׳הַמּ מֵאָשֵׁר; ᵐ5 Δηλαναθ, A ἀπὸ Ασερ Μαχθωθ, and similarly ᵐ5L), place in northeast Ephraim, near border of Manasseh, between Shechem and Taanath Shilo; BuhlGeogr. 109 conjecture khirbet kefr beita.