In Greek mythology, Meander (Maeander, Maiandros) is the river-god of the great winding stream of Caria and Phrygia — son of Oceanus and Tethys in Hesiod's catalogue. The historical Maeander (modern Büyük Menderes) gave English the word "meander"; myth makes the god father of Cyane, who bears Byblis and Caunus to Miletus in Ovid's Milesian tale.
Adapted from Wikipedia, "Büyük Menderes River" · CC BY-SA 4.0
I.Genealogy
Hesiod names Meander among the eddying rivers Tethys bore to Oceanus, in the same breath as Eridanus, Strymon, and Alpheus. Hyginus repeats the Oceanid catalogue. As a personified stream he belongs to the divine brood of fresh waters rather than to a mortal dynasty.
Ovid and related Milesian romance make Cyane his daughter; united with Miletus she becomes mother of Byblis and Caunus. Homeric geography already pairs the Maeander with Miletus and Mycale in the Trojan Catalogue's Asian coast.
II.The famous windings
Ancient geographers celebrated the river's tortuous path from Celaenae toward the Aegean; its silting reshaped the Milesian gulf. A legend claimed a subterranean link with the Alpheus of Elis. In Ovid's Phaethon episode the Maeander is among the rivers that burn when the sun-chariot runs wild.
The atlas node meander is the river-god, not the modern Turkish hydronym alone.