Nodab
Easton's Dictionary
Noble, probably a tribe descended from one of the sons of Ishmael, with whom the trans-Jordanic tribes made war (1 Chr. 5:19).
Smith's Dictionary
(nobility), the name of an Arab tribe mentioned only in (1 Chronicles 6:19) in the account of the war of the Reubenites against the Hagarites. vs. 9-22. It is probable that Nodab, their ancestor, was the son of Ishmael, being mentioned with two of his other sons in the passage above cited, and was therefore a grandson of Abraham.
International 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 (1Ch 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 (Ge 25:15; 1Ch 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.