Pāṇini sūtras

After the verb krû ‘to purchase,’ when preceded by paid, vi or ava, the Atmanepada affix is employed, even when the fruit of the action does not accrue to the agent.

German Desgleichen an krī nach pari, vi und ava. (18)

1. pari+vi+avebhyaḥपरि+वि+अवेभ्यः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   pप्	pariपरि	pariपरि	pariपरि	parपर् + plus iइ
   vव्	viवि	viवि	viवि	vव् + plus iइ
   aअ	avaअव	avebhyaḥअवेभ्यः	avaअव	avअव् + plus ebhyãएभ्य̃

2. kriyaḥक्रियः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   kक्	krīक्री	kriyaḥक्रियः	krīक्री	krक्र् + plus iyaḥइयः

Anuvṛtti

1. ātmanepadamआत्मनेपदम् 1·3·12

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   āआ	ātmanepadaआत्मनेपद	ātmanepadamआत्मनेपदम्	medium voice	ātmanepadआत्मनेपद् + plus amअम्