Pāṇini sūtras

The affix kap does not come after a Bahuvrûhi ending in short ṛ in the Veda.

1. ṛ+taḥऋ+तः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   ṛऋ	ṛऋ	ṛऋ	ṛkāraऋकार	ṛऋ
   tत्	tत्	taḥतः	TT	tत् + plus aḥअः

2. chandasiछन्दसि

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   cच्	chandasछन्दस्	chandasiछन्दसि	Veda	chandछन्द् + plus asiअसि

Anuvṛtti

1. samāsa+antāḥसमास+अन्ताः 5·4·68

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	samāsaसमास	samāsaसमास	Sanskrit compound	samāsसमास् + plus aअ
   aअ	antaअन्त	antāḥअन्ताः	end	antअन्त् + plus āMआM

2. bahuvrīhauबहुव्रीहौ 5·4·113

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   bब्	bahuvrīhiबहुव्रीहि	bahuvrīhauबहुव्रीहौ	bahuvrīhiबहुव्रीहि	bahuvrīhबहुव्रीह् + plus auऔ

3. kapकप् 5·4·151

   Part	Lexeme	Sandhi form	Meaning	Stem
   kक्	kapकप्	kapकप्	kapकप्	kapकप्

4. naन 5·4·155

   Part	Lexeme	Sandhi form	Meaning	Stem
   nन्	naन	naन	not	naन