Jahaz, also Jahaza, Jahazah and Juhzah
Smith’s Bible Dictionary
“Jahaz, also Jahaza, Jahazah and Juhzah” means trodden down
Jahaz, also Jahaza, Jahazah and Juhzah: 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. (Numbers 21:23; 2:32; Judges 11:20) It was in the allotment of Reuben. (Joshua 13:18) Like many others relating to the places east of the Dead Sea, the question of its site must await further research.