Peleg
The name Peleg means “division”.
Easton's Bible Dictionary 1897
Division, one of the sons of Eber; so called because “in his days was the earth divided” (Gen. 10:25). Possibly he may have lived at the time of the dispersion from Babel. But more probably the reference is to the dispersion of the two races which sprang from Eber, the one spreading towards Mesopotamia and Syria, and the other southward into Arabia.
Smith's Bible Dictionary 1863
International Standard Bible Encyclopedia 1915
pe'-leg (pelegh, "watercourse," "division"): A son of Eber, and brother of Joktan. The derivation of the name is given: "for in his days was the earth divided" (niphleghah) (Ge 10:25; compare Lu 3:35, the King James Version "Phalec"). This probably refers to the scattering of the world's population and the confounding of its language recorded in Ge 11:1-9. In Aramaic pelagh and Arabic phalaj mean "division"; in Hebrew pelegh means "watercourse." The name may really be due to the occupation by this people of some well-watered (furrowed), district (e.g. in Babylonia), for these patronymics represent races, and the derivation in Ge 10:25 is a later editor's remark.
S. F. Hunter