Doesn't matter what Oromo source you use, it's purely propaganda. In one sentence he claimed ancient Egypt (without even listing said language), Nubian and so on. He's trying to make up for his lack of ancient history. Typical low self esteem thought.Oromo descends from Meroe. This is recent work by an Ethiopian scholar at the University of Haramaya.
https://www.academia.edu/5847718/Me...he_mystery_of_Meroitic_language?auto=download
"MEROE, OROMO AND OLD NUBIAN: SOLVING THE MYSTERY OF MEROITIC LANGUAGE
Dereje Tadesse Birbirso (PhD) College of Social Science and Humanities Haramaya University, Ethiopia dttadesse@yahoo.com
Abstract
"Meroitic language is one of the most controversial ancient languages but one of the few having advanced writing systems. Some classify it Asian, European, non-African, Semitic, or ‘unclassified’. This paper contends Meroe, similar to their Cushitic friends, are left victims of preconceived ideas based on an entirely argument from silence, an hegemonic epistemology that elevates a single perspective and silences other(s). This paper, thus, comparatively analyzes Meroitic and Old Nubian lexical and grammatical items with corresponding Oromo, a Cushitic family which, many classical and contemporary philologists/linguists argue derives from a unique vocabulary possibly the Ancient language of the Nile Valley and/or Horn of Africa. Meroitic and Old Nubian lexical, grammatical and epigraphic data were collected from secondary sources by Meroitic researchers. Oromo corpora are obtained both from classical and modern descriptions and native-speakers. Results indicate Oromo lexemes show significant level of cognates with not only Meroitic and Old Nubian, but also with the Ancient Egyptian to their northern part."
The people on the border of Ethiopia and Sudan are not cushtic people and have never been. It's attested by the kings of Aksum that they are non Cushitic. It's attested by the people of Gojjam/Gondar who border them...and so on. See the thing with Ethiopian history is that it has been written since an early time, meaning no amount of diluting can ever change it.
Now I have to ask you to stick to Somalian history, which you are versed in.