Arba in the Bible Encyclopedia - ISBE

ar'-ba ('arba`, "four"): Variously described as "the greatest man among the Anakim" (Josh 14:15), "the father of Anak" (Josh 15:13), "the father of Anok" (Josh 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 (Josh 21:11).