Pāṇini sūtras

The affix śa is employed after the roots of the Tudâdi class, in denoting the agent when a sârvadhâtuka affix follows.

1. tud+ādibhyaḥतुद्+आदिभ्यः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   tत्	tudतुद्	tudतुद्	tudतुद्	tudतुद्
   āआ	ādiआदि	ādibhyaḥआदिभ्यः	etc.	ādआद् + plus ibhyãइभ्य̃

2. śaḥशः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   śश्	śaश	śaḥशः	śaश	śश् + plus aḥअः

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