Pāṇini sūtras

ām is the affix of the verb kās ‘to cough’, and of those roots that are formed by affixes (i. e. the derivative verbs), when liṭ follows, except in the Mantra.

1. kās+pratyayātकास्+प्रत्ययात्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   kक्	kāsकास्	kāsकास्	kāsकास्	kāsकास्
   pप्	pratyayaप्रत्यय	pratyayātप्रत्ययात्	affix	pratyayप्रत्यय् + plus ātआत्

2. āmआम्

   Part	Lexeme	Sandhi form	Meaning	Stem
   āआ	āmआम्	āmआम्	āmआम्	āmआम्

3. a+mantreअ+मन्त्रे

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	aअ	aअ	not	aअ
   mम्	mantraमन्त्र	mantreमन्त्रे	Mantra	mantrमन्त्र् + plus eए

4. liṭiलिटि

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   lल्	liṭलिट्	liṭiलिटि	perfect	liṭलिट् + plus iइ

Anuvṛtti

1. dhātoḥधातोः 3·1·22

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   dद्	dhātuधातु	dhātoḥधातोः	Sanskrit verbal root	dhātधात् + plus oḥओः