Ugaritic

ˁmd - support or foot of a wall (DUL 164, Watson 2007: 80)

a regular reflex of PS *ˁmd, borrowing from Akk. imdu ‘stanchion, support’ (CAD I 109) is quite unlikely (Pardee 2000: 882) (Kogan 2015: 356).

PS
*ˁmd - to support; to stand (HALOT 840)