This gentelic adjective identifies someone as belonging to the clan or family of Caleb. It appears in 1 Samuel 25:3 describing Nabal, whose wife Abigail later became David's wife. The Calebites were an important clan within Judah, with Caleb himself being one of the two faithful spies who explored Canaan. The term establishes Nabal's tribal affiliation and helps explain his presence in the region around Carmel and Maon in Judahite territory.