Though likely derived from PS *mḫṣ̂ ‘to smite’ (see in HALOT 571, CDG 338), a parallelism in Arb. and Eth. is hardly a fortuitous result of independent semantic development.
Akkadian
maḫāṣu - to hit, to wound, to strike
(CAD M₁ 71, AHw. 580)
Derived words: māḫiṣu ‘weaver’ (CAD M₁ 102).
Ebla
ma-ḫu-zú /maḫḫuṣu/ - a chopping intrument
(VE 760, Kogan–Krebernik 2021b: 686)
Ugaritic
mḫṣ - to kill
(DUL 540, Hayes 1991: 616, Held 1959: 170)