Pāṇini sūtras

Before the word sabhā when it is exhibited as Neuter, the first member of the compound gets acute on the last syllable.

1. sabhāyāmसभायाम्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	sabhāसभा	sabhāyāmसभायाम्	sabhā [word]सभा [wओर्द्]	sabhसभ् + plus āyआय्

2. napuṃsakeनपुंसके

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   nन्	napuṃsakaनपुंसक	napuṃsakeनपुंसके	neuter	napuṃsakनपुंसक् + plus eए

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