>>676760
>Jabal who was "the father of those who dwell in tents and have livestock."
Sounds more like an origin for the nomads rather than just being part of an existing people.
<Hawaiians having an almost identical flood story
>Lalohona, a woman from the depths of the sea, was enticed ashore by Konikonia with a series of images. She warned him that her parents, Kahinalii and Hinakaalualumoana, would cause the ocean to flood the land so that her brothers, the pao'o fish, may search for her. At her suggestion, they fled to the mountains and built their home in the tops of the tallest trees. After ten days, Kahinalii sent the ocean; it rose and overwhelmed the land. The people fled to the mountains, and the flood covered the mountains; they climbed the trees, and the flood rose above the trees and drowned them all. But the waters began to subside just as they reached the door of Konikonia's house. When the waters retreated, he and his people returned to their land. This flood is called kai-a-ka-hina-lii.
Next to nothing matches, aside from a flood.
>traveller spread the flood story
Seems more like a case of cultural convergence and cross-pollination, given that the major civilizations were founded around rivers and floodplains and most of the smaller ones are kinda in contact with the others.