Abstract is: In Greek mythology, Calypso (/kəˈlɪpsoʊ/; Greek: Καλυψώ, "she who conceals") was a nymph who lived on the island of Ogygia, where, according to Homer's Odyssey, she detained Odysseus for seven years. She promised Odysseus immortality if he would stay with her, but Odysseus preferred to return home.