deriv SD cv (296) ashtadhyayi.com hei.de L 296 ETT STT a 8.2.64 ALPH OLDHOMEPAGE NEWHOMEPAGE

mo no dhAtoH मो नो धातोः ONPANINI 82064

Replace padafinal m म् of a root with n न्.

So, from root zAm शाम् —

prazAm- प्रशाम् m "tranquil" + /su
→ prazAm प्रशाम् by halGyAbbhyodIrgh...
→ prazAn प्रशान् by this rule

prazAnbhyAm प्रशान्भ्याम्

prazAnsu प्रशान्सु / prazAntsu प्रशान्त्सु, with optional /dhuT by nazca.

nalopaHprAt... doesn't erase this n न् because this rule is /asiddha to it.