Morrish Bible Dictionary 
Some of the descendants of Cush, the son of Ham. Theyare represented on the Egyptian monuments as darker in colour than the Egyptians. Without being black they may have been the darkest of any people known to the Israelites, as the question is asked: "Can the Ethiopian change his skin?" Jeremiah 13:23 . As 'Ham' signifies 'black,' he was probably a dark man, and it is implied in Song of Solomon 1:6 that the sun causes the complexion to be black or dark, therefore the farther south in Africa (to the Equator), the darker would be the skin. This, with degraded habits, had changed the features of those in the centre of Africa, from the more cultivated sons of Ham in the north. The Ethiopians appear to have been nearly as far advanced in the arts and sciences as the Egyptians, but some of the monuments in the south are by Egyptian kings. As far south as Aboo-Simbel, about 22 20' N, are two temples hewn in the rock, which rank in interest next to the ruins at Thebes; these are attributed to Rameses 2 king of Egypt, with colossal statues of himself cut out of the solid rock. It was an Ethiopian who befriended Jeremiah and drew him out of the pit, for which his life was spared. Jeremiah 38:7,10,12; Jeremiah 39:16 . It was a pious Ethiopian, of great authority with his queen, to whom Philip preached of Jesus, and then baptised him. Acts 8:27 .
Hastings' Dictionary of the New Testament 
Ethiopians are only twice mentioned in the NT, and then in the same passage, viz. Acts 8:27, where Candace, queen of (the) Ethiopians, and her εὐνοῦχος δυνάστης are mentioned in connexion with Philip the Deacon (see articles Candace, Ethiopian Eunuch, and Philip). The word h there doubtless, as in the OT, the Greek equivalent of the Heb. Kûshî . It seems probable that Αἰθίοψ (?═ ‘Redface’) is only a Graecized form of some native word, not a proper description of their facial characteristic, but what that word was can only be conjectured. ‘Ethiopia’ in NT times would appear to mean the southern part of Egypt, now called the Sûdan, the ancient kingdom of Meroë. In earlier days Napata, a town on the Nile, somewhat north or Meroë, which was likewise on the Nile, had been the capital; but though Napata still retained some of its prestige as the sacred city, yet the seat of government had been removed to Meroë. Another kingdom, that of Axum in the mountain region of Abyssinia proper, seems to have taken its rise about the middle of the 1st cent. a.d., but that does not come into view in our present inquiry.
C. L. Feltoe.
Cyclopedia of Biblical, Theological and Ecclesiastical Literature 
( כּוּשׁ , Isaiah 20:4; Jeremiah 46:9, כּוּשַׁי ; Sept. Αἰθίοπες , Vulg. Ethiopia, Ethiopes), properly "Cush" or "Ethiopia" in two passages ( Isaiah 20:4; Jeremiah 46:9); elsewhere "Cushites," or inhabitants of Ethiopia ( 2 Chronicles 12:3; 2 Chronicles 14:12 , 13 ; 16:8; 21:16; Daniel 11:43; Amos 9:7; Zephaniah 2:12). (See Cushite).