Pāṇini sūtras

The affix aṇ is not however added to a word which, though ending in the Patronymic affix iñ, consists of two syllables, when it is the family name of Eastern people or of Bharata.

1. naन

   Part	Lexeme	Sandhi form	Meaning	Stem
   nन्	naन	naन	not	naन

2. dvi+a+caḥद्वि+अ+चः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   dद्	dviद्वि	dviद्वि	two	dviद्वि
   aअ	aअ	aअ	akāraअकार	aअ
   cच्	cच्	caḥचः	CC	cच् + plus aḥअः

3. prācya+bharateṣuप्राच्य+भरतेषु

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   pप्	prācyaप्राच्य	prācyaप्राच्य	eastern	prācyप्राच्य् + plus aअ
   bब्	bharataभरत	bharateṣuभरतेषु	Bharata	bharatभरत् + plus eṣuएषु

Anuvṛtti

1. aṇअण् 4·2·110

   Part	Lexeme	Sandhi form	Meaning	Stem
   aअ	aṇअण्	aṇअण्	aṇअण्	aṇअण्

2. gotreगोत्रे 4·2·111

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   gग्	gotraगोत्र	gotreगोत्रे	Gotra	gotrगोत्र् + plus eए

3. iñaḥइञः 4·2·112

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   iइ	iñइञ्	iñaḥइञः	iñइञ्	iñइञ् + plus aḥअः