From bathar; (with the article) the craggy spot; Bithron, a place East of the Jordan -- Bithron.
see HEBREW bathar
H1338. bithron
בִּתְרוֺן probably proper name, of a territory (cleft, ravine) east of Jordan; ׳כָּלהַֿבּ 2 Samuel 2:29.
בתת (? cut off, sever, compare Arabic , secuit, resecuit, abrupit).