Eryani already interpreted the words "ʾrydy" and "Dnm" as toponyms; Garbini points out the possibility that "ʾrydy" could be the ancient name of Shiʿb al-ʿAql; this suggestion is based on the meaning of the root RYD, which indicates the lower part of a spur in a hill. This name perfectly suits to the geographical conformation of Shiʿb al-ʿAql. Jamme, on the contrary, rejects this hypothesis, according to Y.85.Y/3 where it is clear that ʾrydy has to be sought in the lowlands.
Garbini, Giovanni 1988. The inscriptions of Si'b al-'Aql, Al-Gafnah and Yala/Ad-Durayb. Pages 21-40 in Alessandro de Maigret (ed.). The Sabaean archaeological complex in the Wādī Yalā (Eastern Hawlān at-Tiyāl, Yemen Arab Republic). A preliminary report. (Istituto italiano per il Medio ed Estremo Oriente. Centro studi e scavi archeologici. Reports and memoirs, 21). Rome: IsMEO.
Jamme 1989: 75-76
Jamme, Albert W.F. 1989. Miscellanées d'ancient arabe XVII. Washington. [Privately printed]