From dabar in the sense of driving; a pasture (i.e. Open field, whither cattle are driven); by implication, a desert; also speech (including its organs) -- desert, south, speech, wilderness.
KJV: And Abraham rose up early in the morning, and took bread, and a bottle of water, and gave it unto Hagar, putting it on her shoulder, and the child, and sent her away: and she departed, and wandered in the wilderness of Beersheba.
NASB: So Abraham rose early in the morning and took bread and a skin of water and gave them to Hagar, putting them on her shoulder, and gave her the boy, and sent her away. And she departed and wandered about in the wilderness of Beersheba.