Pāṇini sūtras

Before a Taddhita-affix with an indicatory ñ, ṇ or k the Vṛiddhi is not substituted for the first vowel after y or v, but ai and au are respectively placed before these semivowels in dvāra &c.

1. dvāra+ādīnāmद्वार+आदीनाम्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   dद्	dvāraद्वार	dvāraद्वार	dvāra [word]द्वार [wओर्द्]	dvārद्वार् + plus aअ
   āआ	ādiआदि	ādīnāmआदीनाम्	etc.	ādआद् + plus īnईन्

2. caच

   Part	Lexeme	Sandhi form	Meaning	Stem
   cच्	caच	caच	besides	caच

Anuvṛtti

1. naन 7·3·3

   Part	Lexeme	Sandhi form	Meaning	Stem
   nन्	naन	naन	not	naन