Law of Palatals (was: Substrate language which contributed sarSapa t

> You have been arguing that ka > ca in reconstructed proto Dravidian and I just gave you the opposite examples from Sanskrit Grammar.

This shows the limitations of internal reconstruction.  Once the correspondence of e/o/a in non-Indo-Iranian Indo-European languages (OK, some had no o/a distinction) to Sanskrit /a/ was recognised, it was noted that the Sanskrit alternations of /k/ and /c/ were better explained as coming from an original *k which became /c/ before front vowels - the Law of Palatals.

Similarly, qualitative ablaut is better explained by taking the guna grade as fundamental.  The laryngeals significantly complicate matters in Sanskrit.

Richard.