A son of Ishmael, Genesis 25:13, the father of the Kedarenians or Cedrei, mentioned by Pliny, who dwelt in the neighborhood of the Nabatheans, in Arabia Deserta. They were a numerous and powerful tribe, not of the best reputation, Psalms 120:5, and their name is sometimes put for the whole of Arabia Desert and its wandering inhabitants, Isaiah 21:16,17 42:11. Their black camel’s hair tents are a picturesque feature in a landscape, Song of Solomon 1:5.
Source: ATS Bible Dictionary
Kedar
Dark-skinned, the second son of Ishmael (Genesis 25:13).
It is the name for the nomadic tribes of Arabs, the Bedouins generally (Isaiah 21:16; 42:11; 60:7; Jeremiah 2:10; Ezekiel 27:21), who dwelt in the north-west of Arabia. They lived in black hair-tents (Cant 1:5). To "dwell in the tents of Kedar" was to be cut off from the worship of the true God (Psalms 120:5). The Kedarites suffered at the hands of Nebuchadnezzar (Jeremiah 49:28,29).
Source: Easton's Bible Dictionary
Kedar
(dark-skinned ), the second in order of the sons of Ishmael, (Genesis 25:13; 1 Chronicles 1:29) and the name of a great tribe of Arabs settled on the northwest of the peninsula and on the confines of Palestine. The "glory of Kedar" is recorded by the prophet Isaiah, (Isaiah 21:13-17) in the burden upon Arabia; and its importance may also be inferred from the "princes of Kedar" mentioned by Ezekiel, (Ezekiel 27:21) as well as the pastoral character of the tribe. They appear also to have been, like the wandering tribes of the present day, "archers" and "mighty men." (Isaiah 21:17) comp. Psal 120:5 That they also settled in villages or towns we find from Isaiah. (Isaiah 42:11) The tribe seems to have been one of the most conspicuous of all the Ishmaelite tribes, and hence the rabbins call the Arabians universally by this name.