Letushim
Letushim is named among the descendants of Abraham through Keturah, listed as one of the sons of Dedan.
Among the sons of Dedan
In the genealogy that traces Abraham's line through Keturah, the Letushim appear in the third generation: "And Jokshan begot Sheba, and Dedan. And the sons of Dedan were Asshurim, and Letushim, and Leummim" (Gen 25:3). The name belongs to a tribal group descended from Abraham's son Jokshan, listed alongside Asshurim and Leummim as one of the three branches of Dedan.