Pāṇini sūtras

The acute accent falls on the first syllable of the reduplicate verbs when followed by an affix beginning with a vowel (the vowel being not iṭ) and being a sârvadhâtuka personal ending.

German Bei reduplicirtetn Verben hat vor denselben Endungen die erste Silbe den Acut. (189)

1. abhyastānāmअभ्यस्तानाम्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	abhyasअभ्यस्	abhyastānāmअभ्यस्तानाम्	reduplicate	abhyastअभ्यस्त् + plus ānआन्

2. ādiḥआदिः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   āआ	ādiआदि	ādiḥआदिः	first syllable	ādआद् + plus iḥइः

Anuvṛtti

1. udāttaḥउदात्तः 6·1·159

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

2. la+sārvadhātukamल+सार्वधातुकम् 6·1·186

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   lल्	laल	laल	verbal ending	lल् + plus aअ
   sस्	sārvadhātuसार्वधातु	sārvadhātukamसार्वधातुकम्	sārvadhātukaसार्वधातुक	sārvadhātukसार्वधातुक् + plus amअम्

3. an+iṭiअन्+इटि 6·1·188

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	naन	anअन्	not	naन
   iइ	iṭइट्	iṭiइटि	iṭइट्	iṭइट् + plus iइ