Pāṇini sūtras

The affix kap comes after uras &c final in a Bahuvrûhi compound.

1. uraḥ+prabhṛtibhyaḥउरः+प्रभृतिभ्यः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   uउ	urasउरस्	uraḥउरः	uras [word]	urउर् + plus aḥअः
   pप्	prabhṛtiप्रभृति	prabhṛtibhyaḥप्रभृतिभ्यः	etc.	prabhṛtप्रभृत् + plus ibhyãइभ्य̃

2. kapकप्

   Part	Lexeme	Sandhi form	Meaning	Stem
   kक्	kapकप्	kapकप्	kapकप्	kapकप्

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