The affix ṇamul comes after the verb piṣ 'to grind', when the words 1. śuṣka 'dry' 2. cūrṇa 'powder' 3. rūkṣe 'dry', in the Accusative -2nd case are compounded with it.,
Thus शुष्कपेषं पिनष्टि = शुष्कं पिनष्टि 'he grinds it dry'; चूर्णपेषं पिनष्टि 'he grinds to powder'; रूक्षपेषं पिनष्टि 'he grinds it dry'. Here also an appropriate verb from the same root पिष् must be used to govern the gerund.,