"“… in the case of Indo-European it is certain that there was no such unitary language which can be reached by means of comparison. It woul be easy to produce, more or less ad infinitum [,] a list of forms like Skt nabhi-, Gk omphalos ‘navel’, which although inherited directly from the primitive IE period, and radically related [,] are irreducible to a single original. In fact detailed comparison makes it clear that the Indo- European that we can reach by this means was already deeply split up into a series of varying dialects.”"