Pāṇini sūtras

The i of iti is the single substitute for the at (of a word denoting imitation of an inarticulate sound)+iti

German Für at einer Schallnachahmung + i von iti wird i allein substituirt. (98)

1. avyakta+anukaraṇasyaअव्यक्त+अनुकरणस्य

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	avyaktaअव्यक्त	avyaktaअव्यक्त	inarticulate	avyaktअव्यक्त् + plus aअ
   aअ	anukaraṇaअनुकरण	anukaraṇasyaअनुकरणस्य	imitation	anukaraṇअनुकरण् + plus asyaअस्य

2. ataḥअतः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	atअत्	ataḥअतः	atअत्	atअत् + plus aḥअः

3. itauइतौ

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   iइ	itiइति	itauइतौ	iti [word]	itइत् + plus auऔ

Anuvṛtti

1. saṃhitāyāmसंहितायाम् 6·1·72

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	saṃhitāसंहिता	saṃhitāyāmसंहितायाम्	continuous speech	saṃhitसंहित् + plus āyआय्

2. ya+ṇ+a+ciय+ण्+अ+चि 6·1·77

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	aअ	aअ	akāraअकार	aअ
   cच्	cच्	ciचि	CC	cच् + plus iइ

3. pūrva+parayoḥपूर्व+परयोः 6·1·84

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   pप्	pūrvaपूर्व	pūrvaपूर्व	antecedent	pūrvaपूर्व
   pप्	paraपर	parayoḥपरयोः	following	paraपर + plus yoḥयोः

4. para+rūpamपर+रूपम् 6·1·94

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   pप्	paraपर	paraपर	following	paraपर
   rर्	rūpaरूप	rūpamरूपम्	vowel	rūpरूप् + plus amअम्