ARBA (ar'ba', Heb., ‘arba’). The father of Anak. He founded the city that bore his name, Kiriath Arba of Hebron (Josh.14.15; Josh.15.13).

International Standard Bible Encyclopedia (1915)

Variously described as "the greatest man among the Anakim" (Jos 14:15), "the father of Anak" (Jos 15:13), "the father of Anok" (Jos 21:11 margin). Thus he seems to have been regarded as the ancestor of the Anakim, and as the most famous hero of that race. He was the reputed founder of the city called after him, on the site of which Hebron was built (Jos 21:11).