In terms of historical chronology the first known use of the term “Negus” goes back to 1594 A.D. In other words prior to the 1500s the term was not in use.
It is incorrect to present the term “Negus” as if it was being used in ancient times beyond the 1500s a.d.. The term “Nigger” comes from the Dutch “Negar”, which is associated with the “Spanish” & “Portuguese”, “Negro” to the Latin “Niger”.
Each version of the term, in each European language is associated with the color “Black”.
Many Pseudo Afro Centrist, Pro Black Pseudo scholars misrepresent that “Niger” was used as a tribal, racial or nationality group to ancient civilizations such as Rome or Greece but that is not factual, the term “Niger” was used by ancient Romans to describe the skin color of the people known to them as “Aethiope Maures”.
The problem with attempting to establish that “Nigger” comes from the modern Ethiopian [Amharic Language] term (“Negus” is also obstructed by the fact that European languages derive from Phoenician(Punic/Canaanite) which is basically an older form of Biblical era Hebrew i.e. a Canaanite language meaning B.C.E. or B.C timeline, not a.d.
The word “Nigger” originated in the 18th century as an adaptation of the Spanish negro, a descendant of the Latin adjective niger. The etymology of nigger is often traced to the Latin niger, meaning black. The Latin niger became the noun negro (black person) in English, and simply the color black in Spanish and Portuguese.
In Early Modern French niger became negre and, later, negress (black woman) was clearly a part of lexical history. One can compare to negre the derogatory nigger – and earlier English variants such as negar, neegar, neger, and niggor – which developed into a parallel lexico-semantic reality in English. It is likely that nigger is a phonetic spelling of the white Southern mispronunciation of Negro.
Whatever its origins, by the early 1800s it was firmly established as a denigrative epithet. Almost two centuries later, it remains a chief symbol of white racism. See Nigger and Caricature
These terms are associated with the color “Black” and “Slave” and does not mean “King” or “Sovereign”.
Whereas Amharic has been the working language of the modern Ethiopian courts, language of trade and everyday communications, the military, since the late “12th century A.D. not B.C. and remains the official language of Ethiopia today.
Now Amharic comes from Ge’ez, the Ge’ez language goes back as far as the 3rd or 4th century A.D. not B.C.
Thus, those who push this incorrect concept that the term “Negus” is the origin of the racial epithet “Nigger” are simply pushing false information.
The Muslims went to see a King in al Habash aka Abyssinia.
The Kings of al Habash were not known as “Negus” they were known as “Al-Najashi“.
Al Habash is today within modern Ethiopia. Negus is a modern term for “Al Najashi“.