Pāṇini sūtras

In a Bahuvrûhi compound in the Chhandas, a word of two syllables with acute on the first syllabic, when preceded by su, gets acute on the first syllable.

1. ādi+udāttamआदि+उदात्तम्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   āआ	ādiआदि	ādiआदि	first syllable	ādआद् + plus iइ
   uउ	udāttaउदात्त	udāttamउदात्तम्	udāttaउदात्त	udāttउदात्त् + plus amअम्

2. dvi+a+cद्वि+अ+च्

   Part	Lexeme	Sandhi form	Meaning	Stem
   dद्	dviद्वि	dviद्वि	two	dviद्वि
   aअ	aअ	aअ	akāraअकार	aअ
   cच्	cच्	cच्	CC	cच्

3. chandasiछन्दसि

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   cच्	chandasछन्दस्	chandasiछन्दसि	Veda	chandछन्द् + plus asiअसि

Anuvṛtti

1. udāttaḥउदात्तः 6·2·64

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

2. bahuvrīhauबहुव्रीहौ 6·2·106

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   bब्	bahuvrīhiबहुव्रीहि	bahuvrīhauबहुव्रीहौ	bahuvrīhiबहुव्रीहि	bahuvrīhबहुव्रीह् + plus auऔ

3. 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

4. soḥसोः 6·2·117

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	suसु	soḥसोः	suसु	sस् + plus oḥओः