Pāṇini sūtras

What is formed by an affix having an indicatory ra, has acute on the penultimate syllable, the full word consisting of more than two syllables.

German Was ein Suffix mit stummem r enthält, hat den Acut auf der vorletzten Silbe. (217)

1. upottamamउपोत्तमम्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   uउ	upottamaउपोत्तम	upottamamउपोत्तमम्	penultimate	upottamउपोत्तम् + plus amअम्

2. r+itiर्+इति

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   rर्	rर्	rर्	rakāraरकार	rर्
   iइ	itइत्	itiइति	itइत्	itइत् + plus iइ

Anuvṛtti

1. udāttaḥउदात्तः 6·1·159

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