Boyd’s Bible Dictionary:
(helped). City and province of Gilead (Num. 21:32; 32:1; Josh. 21:39; 1 Chron. 26:31).
“Jaazer, Jazer” From Concise Bible Dictionary:
City and district in Gilead: it was taken from the Amorites by Israel, allotted to Gad, and given to the Levites (Num. 21:32; Num. 32:1,3,35; Josh. 13:25; Josh. 21:39; 1 Chron. 6:81; Isa. 16:8-9). In Jeremiah 48:32 The “sea of Jazer” is supposed to refer to a lake in the neighborhood. Identified by some with Beit Zerah, 31° 50' N, 35° 51' E.
“Jazer” From Concise Bible Dictionary:
See JAAZER.
Strong’s Dictionary of Hebrew Words:
Transliteration:
Ya`azeyr
Meaning:
or Yazer {yah-zare'}; from 5826; helpful; Jaazer or Jazer, a place East of the Jordan
Potts’ Bible Proper Names:
He brings help; helpful:―a place E. of Jordan [JAAZER], Num. 32:1. {Opem fert}