Pāṇini sūtras

The affix u comes after the roots dhinvi ‘to please’, and kṛṇv ‘to hurt’, when a sarvâdhâtuka affix denoting the agent follows; and in these verbs a is the substitute of the final i

1. dhinvi+kṛṇvyoḥधिन्वि+कृण्व्योः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   dद्	dhinviधिन्वि	dhinviधिन्वि	dhinvधिन्व्	dhinvधिन्व् + plus iइ
   kक्	kṛṇviकृण्वि	kṛṇvyoḥकृण्व्योः	kṛṇvकृण्व्	kṛṇvकृण्व् + plus yoḥयोः

2. aअ

   Part	Lexeme	Sandhi form	Meaning	Stem
   aअ	aअ	aअ	akāraअकार	aअ

3. caच

   Part	Lexeme	Sandhi form	Meaning	Stem
   cच्	caच	caच	besides	caच

Anuvṛtti

1. dhātoḥधातोः 3·1·22

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

2. sārvadhātukeसार्वधातुके 3·1·67

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	sārvadhātuसार्वधातु	sārvadhātukeसार्वधातुके	sārvadhātukaसार्वधातुक	sārvadhātukसार्वधातुक् + plus eए

3. kartariकर्तरि 3·1·68

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   kक्	kartṛकर्तृ	kartariकर्तरि	agens	kartकर्त् + plus ariअरि

4. usउस् 3·1·79

   Part	Lexeme	Sandhi form	Meaning	Stem
   uउ	usउस्	usउस्	usउस्	usउस्