A Comparative Grammar of the Modern Aryan Languages of India v1.c7.153

v1.c7.153

The first process, in which the sibilant goes into an aspirate, is not always in the moderns accompanied by the usual compensatory lengthening of the vowel, inasmuch as the sibilant has not entirely disappeared, so that there is not that total loss of a letter which would demand compensation. Previous to disappearing, however, the letter which is in combination with the sibilant assimilates, in Prakrit, followed by P. and S., the sibilant to itself, attaching the aspiration to the last member;