Pāṇini sūtras

The words adhi and pari are karma-pravachanûya when used as mere expletives.

1. adhi+parīअधि+परी

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	adhiअधि	adhiअधि	adhiअधि	adhअध् + plus iइ
   pप्	pariपरि	parīपरी	pariपरि	parपर् + plus īई

2. anarthakauअनर्थकौ

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	anarthakaअनर्थक	anarthakauअनर्थकौ	meaningless	anarthakअनर्थक् + plus auऔ

Anuvṛtti

1. nipātāḥनिपाताः 1·4·56

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   nन्	nipātaनिपात	nipātāḥनिपाताः	particle	nipātनिपात् + plus āMआM

2. karmapravacanīyāḥकर्मप्रवचनीयाः 1·4·83

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   kक्	karmapravacanīyकर्मप्रवचनीय्	karmapravacanīyāḥकर्मप्रवचनीयाः	karmapravacanīyaकर्मप्रवचनीय	karmapravacanīyकर्मप्रवचनीय् + plus āMआM