ornamental

a.装饰的

orgiastic, orgy, oriel, orient, oriental, orientalist, orientate, orientation, orienteering, orifice, origin, original, original sin, originality, originally, originate, originator, oriole, ormolu, ornament, ornamentation, ornate, ornately, ornateness, ornithological, ornithologist, ornithology, orotund, orphan, orphanage, orris-root, orth(o)-, orthodontic, orthodontics, orthodontist, orthodox, orthodoxy, orthographic (also orthographical), orthographically, orthography,