Pāṇini sūtras

Before the word pura, when the compound denotes a city of the Eastern People, the final of the first member has the acute.

1. pureपुरे

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   pप्	puraपुर	pureपुरे	pura [word]	purपुर् + plus eए

2. prācāmप्राचाम्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   pप्	prāñcप्राञ्च्	prācāmप्राचाम्	eastern	prप्र् + plus ācआच्

Anuvṛtti

1. pūrva+padamपूर्व+पदम् 6·2·1

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   pप्	pūrvaपूर्व	pūrvaपूर्व	antecedent	pūrvaपूर्व
   pप्	padaपद	padamपदम्	word	padपद् + plus amअम्

2. udāttaḥउदात्तः 6·2·64

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

3. antaḥअन्तः 6·2·92

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