Hamzza
VIP
Both hypotheses are speculation as you said. I demonstrated the reason why I think the latter theory is more plausibleSource? Many sources connect Awdal and adal. If you make such a claim you should quote something. I know some sources connect the name adal with the Amharic name for an Afar word but how is this any better than the Adal-Awdal connection? It's speculation.
Example from Historical Dictionary of Djibouti - Page 19
AWDAL . The Somali word for Adal . This name was officially given to the northernmost region of Somalia bordering Djibouti
Adal was already part of the greater Yifat Sultanate which was based in the Shewan highlands of Ethiopia, both Ethiopian and Arabic sources mention Adal as being the Eastern province of Yifat.
Let's remember the principle enunciated by Herodotus:
that is for Ancient and Medieval geographers a country took its name from its inhabitants, not the other way around.
So my theory is that Adal took its name from the Afar clan 'Adali'.