Pāṇini sūtras

Optionally dat is substituted for danta, in a Bahuvrûhi compound, when it is preceded by the words śyâva and aroka.

1. vibhāṣāविभाषा

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

2. śyāva+arokābhyāmश्याव+अरोकाभ्याम्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   śश्	śyāvaश्याव	śyāvaश्याव	śyāva [word]श्याव [wओर्द्]	śyāvश्याव् + plus aअ
   aअ	arokaअरोक	arokābhyāmअरोकाभ्याम्	aroka [word]	arokअरोक् + plus ābhy&आभ्य्&

Anuvṛtti

1. samāsa+antāḥसमास+अन्ताः 5·4·68

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	samāsaसमास	samāsaसमास	Sanskrit compound	samāsसमास् + plus aअ
   aअ	antaअन्त	antāḥअन्ताः	end	antअन्त् + plus āMआM

2. bahuvrīhauबहुव्रीहौ 5·4·113

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   bब्	bahuvrīhiबहुव्रीहि	bahuvrīhauबहुव्रीहौ	bahuvrīhiबहुव्रीहि	bahuvrīhबहुव्रीह् + plus auऔ

3. datṛदतृ 5·4·141

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   dद्	datṛदतृ	datṛदतृ	datṛदतृ	datदत् + plus ṛऋ