PS

mŝ(y) - to walk, to go away (Kogan–Krebernik 2021a 379)

Akkadian
namāšu - to move (CAD N1 220, AHw. 726)

Probably a combination of the ingressive n- and the biconsonantal verbal root mŝ.

Arabic
mšy - to go, to rove, to wander (Lane 3020)
Sabaic
ms2y - to go away (SD 87)