Pāṇini sūtras

The sa of saṭ is changed to ṣa after an Upasarga having an iṁ or u, but not after prati

German Auch in sad, aber nicht nach prati. (66)

1. sadiḥसदिः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	sadiसदि	sadiḥसदिः	sadसद्	sadसद् + plus iḥइः

2. a+prateḥअ+प्रतेः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	aअ	aअ	not	aअ
   pप्	pratiप्रति	prateḥप्रतेः	pratiप्रति	pratप्रत् + plus eḥएः

Anuvṛtti

1. a+pada+antasyaअ+पद+अन्तस्य 8·3·55

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	aअ	aअ	not	aअ
   pप्	padaपद	padaपद	word	padपद् + plus aअ
   aअ	antaअन्त	antasyaअन्तस्य	last syllable	antअन्त् + plus asyaअस्य

2. i+ṇ+koḥइ+ण्+कोः 8·3·57

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   iइ	iइ	iइ	ikāraइकार	iइ
   ṇण्	ṇण्	ṇण्	NaNअ	ṇण्
   kक्	kuकु	koḥकोः	guttural	kक् + plus oḥओः

3. aṭ+vyavāyeअट्+व्यवाये 8·3·63

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	aṭअट्	aṭअट्	aṭअट्	aṭअट्
   vव्	vyavāyaव्यवाय	vyavāyeव्यवाये	interposition	vyavāyव्यवाय् + plus eए

4. sthā+ādiṣuस्था+आदिषु 8·3·64

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	sthāस्था	sthāस्था	sthāस्था	sthस्थ् + plus āआ
   āआ	ādiआदि	ādiṣuआदिषु	etc.	ādआद् + plus iṣuइषु

5. upasargātउपसर्गात् 8·3·65

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   uउ	upasargaउपसर्ग	upasargātउपसर्गात्	preposition	upasargउपसर्ग् + plus ātआत्

6. saḥसः 8·3·56

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	sस्	saḥसः	sakāraसकार	sस् + plus aḥअः