Ezinganekwaneni zaseNorse,u- Iðunn ungunkulunkulukazi ohlotshaniswa nama- apula nentsha.I-Iðunn ufakazelwa yi- Poetic Edda, eyahlanganiswa ngekhulu le-13 kusuka emithonjeni yendabuko yangaphambili, kanye neProse Edda, eyabhalwa ngekhulu le-13 nguSnorri Sturluson.Kuyo yomibili imithombo, uchazwa njengonkosikazi kankulunkulu wama-skaldic uBragi, naku- Prose Edda, futhi njengomgcini wama-aphula kanye nomnikezeli wobusha obungunaphakade . Igama elithi Iðunn lichazwe ngokuhlukahlukene ngokuthi lisho ukuthi "umncane njalo", "umvuseleli", noma "ovuselelayo". Njengoba yesimanje zamagama zesiNgisi awunazo waseMoresheti ( d ) uhlamvu, Iðunn ngezinye izikhathi anglicized njengoba Idun, Idunn noma Ithun. Isijobelelo -a kwesinye isikhathi sisetshenziswa ukukhombisa ubufazi, okuholela kumafomu afana ne- Iduna ne- Idunna . U-Iðunn wethulwa njengomfazi kaBragi esethulweni sesibongo senkondlo ethi Lokasenna, lapho bobabili beya edilini elenziwa ngu- irgir.Ezingxenyeni ezingu-16, 17 no-18, kuba nengxoxo phakathi kukaLoki no-Iðunn ngemuva kokuthi uLoki ethuke uBragi.Kusigaba 16, u-Iðunn (lapha uchazwe njengo- Idunn ) uthi: U-Idunn uthe: Ngiyakucela, Bragi, ukuthi wenze insizakalo ezihlotsheni zakho zegazi nabo bonke ubudlelwano bokutholwa, ukuthi akufanele usho amazwi okusola kuLoki, ehholo lika-irgir.