*šVmāḫ- - intestine; spleen (SED I No. 247)

Akkadian

šammāḫu - large intestine; paunch, belly(?) (CAD Š₁ 314, AHw. 1156)

According to both sources, borrowed from Sum., but. cf. a striking Gez. cognate.

Geez

səmāḫ, səmāḥ - spleen (CDG 502)