Pāṇini sūtras

The iṭ is not lengthened after vṛ and ṝ ending roots, in the s-Aorist of the Parasmaipada.

1. siciसिचि

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	sicसिच्	siciसिचि	aorist	sicसिच् + plus iइ

2. caच

   Part	Lexeme	Sandhi form	Meaning	Stem
   cच्	caच	caच	besides	caच

3. parasmaipadeṣuपरस्मैपदेषु

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   pप्	parasmaipadaपरस्मैपद	parasmaipadeṣuपरस्मैपदेषु	active voice	parasmaipadपरस्मैपद् + plus eṣuएषु

Anuvṛtti

1. dīrghaḥदीर्घः 7·2·37

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   dद्	dīrghaदीर्घ	dīrghaḥदीर्घः	long	dīrghदीर्घ् + plus aḥअः

2. naन 7·2·39

   Part	Lexeme	Sandhi form	Meaning	Stem
   nन्	naन	naन	not	naन

3. va+l+ādeḥव+ल्+आदेः 7·2·35

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   vव्	vaव	vaव	vakāraवकार	vव् + plus aअ
   lल्	lल्	lल्	LL	lल्
   āआ	ādiआदि	ādeḥआदेः	first syllable	ādआद् + plus eḥएः

4. vṛ+ṝ+taḥवृ+ॠ+तः 7·2·38

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   vव्	vṛवृ	vṛवृ	vṛवृ	vव् + plus ṛऋ
   ṝॠ	ṝॠ	ṝॠ	ṝkāraॠकार	ṝॠ
   tत्	tत्	taḥतः	TT	tत् + plus aḥअः