heybingur
nafnorð karlkyn
Beyging
eintalafleirtala
án greinismeð greinián greinismeð greini
nf.heybingurheybingurinnnf.heybingirheybingirnir
þf.heybingheybinginnþf.heybingiheybingina
þgf.heybingheybingnumþgf.heybingjumheybingjunum
ef.heybingsheybingsinsef.heybingjaheybingjanna