Under this name we find in Hesiod (Theogony of Hesiod 359) a daughter of Oceanus and Tethys, and in Apollodorus (Apollodorus i. 2. § 7) a daughter of Nereus, while the Homeric Calypso is described as a daughter of Atlas.
Catypso loved the unfortunate hero, and promised him eternal
youth and immortality if he would remain with her. She detained
him in her island for seven years, until at length she was
obliged by the gods to allow him to continue his journey