Zimmah = "plotter"
1) a Gershonite Levite, son of Jahath
2) another Gershonite, son of Shimei; perhaps the same as 1 above
3) father or ancestor of Joah, a Gershonite in the reign of Hezekiah
2155 Zimmah zim-maw'
the same as 2154; Zimmah, the name of two Israelites: KJV -- Zimmah.
see HEBREW for 02154