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Geit sú er Heiðrún heitir stendr uppi á Valhöll ok bítr barr af limum trés þess er mjök er nafnfrægt, er Léraðr heitir, en ór spenum hennar rennr mjöðr sá er hon fyllir skapker hvern dag. Þat er svá mikit at allir einherjar verða fulldruknir af. - 
A goat called Heiðrún stands up [on its hind-legs] in Valhalla biting the buds off the branches of that very famous tree which is called Lærað. From her teats runs the mead with which every day she fills a cauldron, which is so big that all the Einherjar can drink their fill from it. - Young's translation
Since Snorri quotes other strophes of Grímnismál it seems reasonable to assume that he knew this strophe too and used it as his source for his description of Heiðrún.
The etymology of Heiðrún remains debatable. Anatoly Liberman suggests that Heiðþyrnir, the name of the lowest heaven in Scandinavian mythology (from heið "bright sky"), was cut into two, and on the basis of those halves the names the heavenly goat Heiðrún and of the heavenly stag Eikþyrnir were formed (the element rún ~ run concealed several puns, but it is a common suffix of female names). The etymology of the Modern German name Heidrun is also debatable.
Heiðrún's name is sometimes anglicized Heidrun, Heidhrun, Heithrun, Heidrún, Heithrún or Heidhrún.
- Auðumbla, a primeval cow in Norse mythology whose udders produce four rivers of milk, from which Ymir fed
- List of people named Heidrun
- Bellows, Henry Adams. Translation of the Poetic Edda.
- Eysteinn Björnsson (ed.) (2005). Snorra-Edda: Formáli & Gylfaginning : Textar fjögurra meginhandrita.
- Hollander, Lee M. (1962). The Poetic Edda. Austin: University of Texas. ISBN 0-292-76499-5.
- Jón Helgason (Ed.). (1955). Eddadigte (3 vols.). Copenhagen: Munksgaard.
- Liberman, Anatoly (2016). In Prayer and Laughter. Essays on Medieval Scandinavian and Germanic Mythology, Literature, and Culture. Paleograph Press. ISBN 9785895260272.
- Young, Jean I. (1964). Snorri Sturluson : the Prose Edda. Berkeley: University of California Press. ISBN 0-520-01231-3.
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