Borgný is an Old Norse feminine given name, combining the elements borg ('fortress') and nýr ('new'). The name appears in the Old Norse poem Oddrúnargrátr, part of the Poetic Edda, a collection of mythological and heroic poetry. In this context, Borgný is a tragic figure: she is the sister of Vilkundr and the lover of Heiðrekr, and her story highlights themes of love, loss, and fate common in Norse legend. Linguistic Form and Matronymics In Faroese, Borgný is still used as a given name. Following Faroese naming conventions, it is the basis for matronymics (names derived from the mother's name): for a son, Borgnýarson means 'Borgný's son'; for a daughter, Borgnýardóttir means 'Borgný's daughter'. These forms demonstrate how Old Norse names maintain their grammatical structure in modern insular Scandinavian languages.