PWS

*gbṯ - hump (of an animal) (SED I No. 82; Kogan 2011: 230)

Akkadian
gipšu - a deformation of part of the exta (CAD G 84, AHw. 290)
The relation to WS forms is unclear.
Ugaritic
gbṯt - hump (DUL 293, Watson 2007: 83)
As long as the Ugaritic word is thought to mean “hump,” there is no need to consider it a borrowing from Akk. gipšu ‘mass’, see SED I No. 82 (Kogan 2015: 361).
Tigre
gäbəs - crook-backed (WTS 584)
Wolane
gumbus - hunchbacked (EDG 277)
Gogot
gumbəs - hunchbacked (EDG 277)
Soddo
gumbus - hunchbacked (EDG 277)