ish'-bak (yishbaq): A name in the list of sons of Abraham by Keturah (Ge 25:2 parallel 1Ch 1:32). These names probably represent tribes; the tribe of Ishbak has not been certainly identified.
The International Standard Bible Encyclopedia
Ishbak
The International Standard Bible Encyclopedia, James Orr (1915). Public domain, from the CrossWire SWORD module.