Argobba

šan̄n̄a - hump of animal (LArg. 221)

Hardle Cushitism (in view of the Sem. data), however, a borrowing from Arb. sanām- ‘camel hump’ is not impossible. 

Areal reconstruction
*š/sVn(-ām)- - hump of animal (camel, etc.) (SED I No. 250)

Problematic. Scarce attestation in the South Semitic area only; quality of the first radical unspecified.