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)
(division, part), son of Eber and brother of Joktan. (Genesis 10:25; 11:16) The only incident connected with his history is the statement that “in his days was the earth divided.” an event embodied in the meaning of his name—“division.” The reference is to a division of the family of Eber himself, the younger branch of which (the Joktanids) migrated into southern Arabia, while the elder remained in Mesopotamia.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
PE'LEG (division), a son of Eber and brother of Joktan, in whose time - that is, in the age immediately succeeding the Deluge - the family of Eber was divided, the elder branch, which descended from Peleg, remaining in Mesopotamia, while the younger branch, descending from Joktan, emigrated to Southern Arabia. Gen 10:25; Num 11:16; 1 Chr 1:25.
Hitchcock's Bible Names (1869)
division