þingmannasamstarfnafnorð hvorugkynBeygingeintalaán greinismeð greininf.þingmannasamstarfþingmannasamstarfiðþf.þingmannasamstarfþingmannasamstarfiðþgf.þingmannasamstarfiþingmannasamstarfinuef.þingmannasamstarfsþingmannasamstarfsinsnf.þf.þgf.ef.