Phonologically and semantically compatible with the present root, but Leslau considers it to be Cushitism.
To be compared to Akk. danānu 'to be strong' (see the list of ES cognates under that entry).
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 zidərä ‘this year’ (EDG 218).