Pāṇini sūtras

When words denoting scholars are named after their teachers and are compounded into a Dvandva, the first member retains its accent.

1. ācārya+upasarjanaḥआचार्य+उपसर्जनः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   āआ	ācāryaआचार्य	ācāryaआचार्य	guru	ācāryआचार्य् + plus aअ
   uउ	upasarjanaउपसर्जन	upasarjanaḥउपसर्जनः	upasarjanaउपसर्जन	upasarjanउपसर्जन् + plus aḥअः

2. caच

   Part	Lexeme	Sandhi form	Meaning	Stem
   cच्	caच	caच	besides	caच

3. antevāsīअन्तेवासी

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	antevāsinअन्तेवासिन्	antevāsīअन्तेवासी	ŚiṣyaŚइष्य	antevāsअन्तेवास् + plus īई

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. rājanya+bahuvacana+dvandveराजन्य+बहुवचन+द्वन्द्वे 6·2·34

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   dद्	dvaṃdvaद्वंद्व	dvandveद्वन्द्वे	DvaṃdvaDवंद्व	dvaṃdvद्वंद्व् + plus eए