The difference between a superseded form and an obsolete form is that a superseded form has changed its status as defined by a normative body, but can indeed still be used in older standards or in nonstandardized environments. In contrast, an obsolete form has truly fallen out of common usage. Some obsolete forms are also archaic, i.e., of very ancient etymological origin, but this does not have to be the case. By the same token, many forms in current usage are nonetheless archaic in origin. Outdated forms are similar to superseded forms, but they are not subject to normative classification.