Geez

maḫaṣ̂a - to suffer labor pains (CDG 338)

Areal reconstruction
*mḫṣ̂ - to have labour pains (SED I No. 40v)
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.