Save Gender Masculine Usage Astronomy Pronounced Pron. /ˈaɪ.jɪər/, /ˈæ.ɡɪər/, /ˈiː.dʒər/, /ˈeɪ.jɪər/ [key·simplify] Other Forms FormsAEgir (the exoplanet) Meaning & History Anglicized form of Old Norse Ægir. This is the name of one of Saturn’s moons, as well as an exoplanet (also known as Epsilon Eridani b) orbiting the star Epsilon Eridani, both named for the figure in Norse mythology.