Pāṇini sūtras

The semivowels y, v, r, l are the substitutes of the corresponding vowels i, u, ṛ and ḷ (long and short), when followed by a vowel.

German Für die Vocale i, u, ṛ und ḷ, kurz oder lang, werden vor einem Vocale der Reihe nach y, v, r und l substituirt. Vgl. 6, 1, 101. (77)

1. i+kaḥइ+कः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   iइ	iइ	iइ	ikāraइकार	iइ
   kक्	kक्	kaḥकः	KK	kक् + plus aḥअः

2. ya+ṇ+a+ciय+ण्+अ+चि

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   yय्	yaय	yaय	yakāraयकार	yय् + plus aअ
   ṇण्	ṇण्	ṇण्	NaNअ	ṇण्
   aअ	aअ	aअ	akāraअकार	aअ
   cच्	cच्	ciचि	CC	cच् + plus iइ

Anuvṛtti

1. saṃhitāyāmसंहितायाम् 6·1·72

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