yish.baq is a personal name listed among the sons born to Abraham through Keturah.

The term is used as a proper personal name in two genealogical birth lists, identifying one of the sons borne to Abraham through Keturah.

1. Personal name in Abraham's family list · dominant

   In Genesis 25:2, the proper noun occurs in the list of sons whom she bore to him; the APB renders the list with “Ishbak.” In 1 Chronicles 1:32, the same proper-noun use appears in the list of Keturah's sons, again rendered “Ishbak” by the APB.

   Genesis 25:21 Chronicles 1:32

In the Anselm Project Bible: Across both verses, the APB presents the name as “Ishbak” within lists of sons. The original form is identified chiefly by its proper-noun morphology and list position.