*ŝVgVr-at- - ravine (Kogan 2015:572)

The origin is unclear. Of some interest may be Gez. ŝagara ‘to take a step, to amble, to go across’ (CDG 526) and its EthS cognates, note especially Amh. täšaggärä ‘to cross a river, to cross over’ (AED 660).