Phonologically and semantically compatible with the present root, but Leslau considers it to be Cushitism.
It is hard to say whether this and other Neo-Ethiopian terms for ‘border, limit’ belong to PS *dawr, in view of the semantic difference.
Probably related following Leslau 1956: 247 and EDG 218. See also zädrä ‘this year’ (EDG 218).