The term "Amen" does date back to 2500 B.C. in Egyptian culture [ i.e. Black culture]..."The god Amen was originally a local "god" of Thebes... This "hidden god" for [which] is the meaning of the name "Amen," was essentially a god of the south of Egypt, but when Theban kings vanquished their foes in the north and so became masters of the whole country, "Amen" became a god of the FIRST importance and kings of XVIIIth, XIXth and XX dynasties endowed his temples on a lavish scale. The priests of the god called Amen "the king of the gods", and they endeavoured to make all Egypt accept him as such but in spite of their power they saw that they could not bring this result about unless they identified him with the oldest gods of the land. They [the priests] declared that he represented the hidden and mysterious power which created and sustains the universe and that the sun was the symbol of this power..." Amen to that!
Excerpts from Egyptian Magic: Rise of Amen Worship, Sir Wallace Budge, University Books, New York: 129