The final naś at the end of a word is optionally changed to guttural.,
The word पदस्य is understood here also. As सा वै जीवनडाहुतिः (Maitr. Samhita. I. 4. 13): or सा वै जीवनगाहुतिः ॥ According to Pro. Bohtlingk this latter form is not found in the Samhita.
Here the root नश has taken क्विप् in denoting 'condition or state'; by considering it as belonging to संपदादि class.
जीवस्य नाशः = जीवनक् or जीवनट् ॥ The gutturalisation optionally debars the ष change of 8.2.36. When the ष change takes place, this ष is changed to ट् by 8.2.39 and 8.4.56.,