bifreiðaöldnafnorð kvenkynBeygingeintalaán greinismeð greininf.bifreiðaöldbifreiðaöldinþf.bifreiðaöldbifreiðaöldinaþgf.bifreiðaöldbifreiðaöldinnief.bifreiðaaldarbifreiðaaldarinnarnf.þf.þgf.ef.