borgunardagur
nafnorð karlkyn
Beyging
eintalafleirtala
án greinismeð greinián greinismeð greini
nf.borgunardagurborgunardagurinnnf.borgunardagarborgunardagarnir
þf.borgunardagborgunardaginnþf.borgunardagaborgunardagana
þgf.borgunardegiborgunardeginumþgf.borgunardögumborgunardögunum
ef.borgunardagsborgunardagsinsef.borgunardagaborgunardaganna