Pāṇini sūtras

In a Bahuvrûhi the acute is on the final, when the second member is mukha meaning mouth i. e. the actual bodily part of an animal and not used metaphorically.

1. mukhamमुखम्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   mम्	mukhaमुख	mukhamमुखम्	mukha [word]	mukhमुख् + plus amअम्

2. sva+aṅgamस्व+अङ्गम्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	svaस्व	svaस्व	own(a)	svस्व् + plus aअ
   aअ	aṅgaअङ्ग	aṅgamअङ्गम्	body part	aṅgअङ्ग् + plus amअम्

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. bahuvrīhauबहुव्रीहौ 6·2·162

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