Pāṇini sūtras

After ni, the second member has the acute on the last syllable, when the sense is of ‘not laying down’.

1. neḥनेः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   nन्	niनि	neḥनेः	niनि	nन् + plus eḥएः

2. a+nidhāneअ+निधाने

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	aअ	aअ	not	aअ
   nन्	nidhānaनिधान	nidhāneनिधाने	concealment	nidhānनिधान् + plus eए

Anuvṛtti

1. udāttaḥउदात्तः 6·2·64

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   uउ	udāttaउदात्त	udāttaḥउदात्तः	udāttaउदात्त	udāttउदात्त् + plus aḥअः

2. uttara+pada+ādiḥउत्तर+पद+आदिः 6·2·111

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   uउ	uttaraउत्तर	uttaraउत्तर	last	uttarउत्तर् + plus aअ
   pप्	padaपद	padaपद	word	padपद् + plus aअ
   āआ	ādiआदि	ādiḥआदिः	first syllable	ādआद् + plus iḥइः

3. antaḥअन्तः 6·2·143

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	antaअन्त	antaḥअन्तः	last syllable	antअन्त् + plus aḥअः

4. upasargātउपसर्गात् 6·2·177

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