|Easton's Bible Dictionary|
Noble, probably a tribe descended from one of the sons of Ishmael, with whom the trans-Jordanic tribes made war (1 Chronicles 5:19).
Int. Standard Bible Encyclopedia
no'-dab (nodhabh; Nadabaioi): A Hagrite clan which, along with Jetur and Naphish, suffered complete defeat at the hands of the trans-Jordanic Israelites (1 Chronicles 5:19). It has been suggested that Nodab is a corruption of Kedemah or of Nebaioth, names which are associated with Jetur and Naphish in the lists of Ishmael's sons (Genesis 25:15 1 Chronicles 1:31), but it is difficult to see how even the most careless copyist could so blunder. There is a possible reminiscence of the name in Nudebe, a village in the Chauran.
Nodab (1 Occurrence)
1 Chronicles 5:19 They made war with the Hagrites, with Jetur, and Naphish, and Nodab. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)