Pāṇini sūtras

The final a of pāda is elided when it is at the end of a Bahuvṛihi compound, preceded by a word denoting a thing with which it is compared, but not so when such word is hasti &c.

1. pādasyaपादस्य

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   pप्	pādaपाद	pādasyaपादस्य	pāda [word]पाद [wओर्द्]	pādपाद् + plus asyaअस्य

2. lopaḥलोपः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   lल्	lopaलोप	lopaḥलोपः	elision	lopलोप् + plus aḥअः

3. a+hasti+ādibhyaḥअ+हस्ति+आदिभ्यः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	aअ	aअ	not	aअ
   hह्	hastinहस्तिन्	hastiहस्ति	hastin [word]	hastहस्त् + plus iइ
   āआ	ādiआदि	ādibhyaḥआदिभ्यः	etc.	ādआद् + plus ibhyãइभ्य̃

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. upamānātउपमानात् 5·4·137

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   uउ	upamānaउपमान	upamānātउपमानात्	comparison	upamānउपमान् + plus ātआत्