originally

ad.起初，原先，从前

organizational, organisational, organize, organize, organise, organized, organised, organizer, organiser, orgasm, orgiastic, orgy, oriel, orient, oriental, orientalist, orientate, orientation, orienteering, orifice, origin, original, original sin, originality, originate, originator, oriole, ormolu, ornament, ornamental, ornamentation, ornate, ornately, ornateness, ornithological, ornithologist, ornithology, orotund, orphan, orphanage, orris-root, orth(o)-, orthodontic, orthodontics,