gleiðgosabragurnafnorð karlkynBeygingeintalaán greinismeð greininf.gleiðgosabragurgleiðgosabragurinnþf.gleiðgosabraggleiðgosabraginnþgf.gleiðgosabraggleiðgosabragnumef.gleiðgosabrags / gleiðgosabragargleiðgosabragsins / gleiðgosabragarinsnf.þf.þgf.ef.