Pāṇini sūtras

There is optionally the substitution of ā in the room of the diphthong of the root gura ‘to exert’ when preceded by the preposition apa and taking the affix ṇamul

German Auch in gur nach apa kann vor dem Absolutivsuffix -am für den Diphthongen ā substituirt werden. (53)

1. apaguraḥअपगुरः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	apagurअपगुर्	apaguraḥअपगुरः	apagurअपगुर्	apagurअपगुर् + plus aḥअः

2. ṇamuliणमुलि

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   ṇण्	ṇamulणमुल्	ṇamuliणमुलि	ṇamulणमुल्	ṇamulणमुल् + plus iइ

Anuvṛtti

1. upadeśeउपदेशे 6·1·45

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   uउ	upadeśaउपदेश	upadeśeउपदेशे	linguistics	upadeśउपदेश् + plus eए

2. vibhāṣāविभाषा 6·1·51

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   vव्	vibhāṣविभाष्	vibhāṣāविभाषा	option	vibhāṣविभाष् + plus āआ