a-da'-da (`adh`adhah): A city in the southern part of Judah (Jos 15:22). The older copies of the Greek text have Arouel, but that is not a sufficient reason for identifying the name with the Aroer of 1Sa 30:28. Some scholars adopt the change of text, and identify the site with Ararah, about seven miles Southeast of Beer-sheba. Others identify it with Adadah, eight or nine miles Southeast of Arad.
The International Standard Bible Encyclopedia
Adadah
The International Standard Bible Encyclopedia, James Orr (1915). Public domain, from the CrossWire SWORD module.