 A long-time classification divided the family into Nakh and Dagestanian branches, whence the term Nakho-Dagestanian.However, attempts at reconstructing the protolanguage suggest that the Nakh languages are no more divergent from Dagestanian than the various branches of Dagestanian are from each other, although this is still not universally accepted.The following outline, based on the work of linguist Bernard Comrie and others, has been adopted by "Ethnologue."