Like really there all the same but why is that? is there a classification of people by another people, or is it something else? If you want my opinion on the matter i think( a bit controversial) the suffix "Ali" is equivelent to "Galla". I think this is what people were called a long time ago in the Somali Peninsula and surronding areas by others. Galla is an ancient term and the name could possibly predate even the ignorant beduin arabs in mecca conversion to Islam.When i mentioned Cushites i was refering to members of the afro-asiatic classification. I know people might not agree with this but this a theory of mine and believe everything Galla is Oromo but i must remind people there is no oromo clan with "Gal" in its name and there is no Oromo clan with "waq" in its name but there are Somali

Also the one"Ali" that stands out to me is "Adali". At first I came with the conclusion that Ad-ali that probaly consited of today countires of Somalia,Djbouti, Eastern Ethiopia(Haraghe and Ogaden), and maybe some parts of Eritrea and believe it consisted prior to the Abyssinian-Adal wars. Adal/Ad-ali could possibly be infact Al 'Ad, as you know as Muslims the people of 'Ad described in the Quran. Because in the afar language adjective comes before the noun Al Ad would be Adal and probaly the "i" was in the end was afar curroption of the arabic language. But i realized some hundreds kilometers north of Dire Dawa comes a place called addagalla an issa inhabited land which can roughly translate to white galla or white camel and which lacks any hard evidence that it was ever an Oromo settlement.