Ja’haz, also Jaha’za, Jaha’zah and Jah’zah (trodden down). Under these four forms is given in the Authorized Version the name of a place which in the Hebrew appears as Yahats and Yahtsah. At Jahaz the decisive battle was fought between the children of Israel and Sihon king of the Amorites. Num. 21:23; Deut. 2:32; Judges 11:20. It was in the allotment of Reuben. Josh. 13:18. Like many others relating to the places east of the Dead Sea, the question of its site must await further research.