Pāṇini sūtras

A word ending in a case-affix is compounded with words denoting the names of rivers, when the compound word denotes a thing other than that expressed by the terms of the compound, and is an appellative; the compound so formed being an Avyayûbhâva.

1. anya+padārtheअन्य+पदार्थे

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	anyaअन्य	anyaअन्य	other	anyaअन्य
   pप्	padārthaपदार्थ	padārtheपदार्थे	object	padārthपदार्थ् + plus eए

2. caच

   Part	Lexeme	Sandhi form	Meaning	Stem
   cच्	caच	caच	besides	caच

3. sañjñāyāmसञ्ज्ञायाम्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	saṃjñसंज्ञ्	sañjñāyāmसञ्ज्ञायाम्	name	saṃjñसंज्ञ् + plus āyआय्

Anuvṛtti

1. avyayībhāvaḥअव्ययीभावः 2·1·5

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	avyayībhāvअव्ययीभाव्	avyayībhāvaḥअव्ययीभावः	avyayībhāvaअव्ययीभाव	avyayībhāvअव्ययीभाव् + plus aḥअः

2. nadībhiḥनदीभिः 2·1·20

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   nन्	nadīनदी	nadībhiḥनदीभिः	river	nadनद् + plus ībhi&ईभि&