Pāṇini sūtras

The affix yat (y<‘>a) comes in the ârhûya sense’s (V.1.37-63), after the words paṇa, pâda, mâsha and śata, when preceded by the word adhyardha, or a Numeral occasioning a Dvigu.

1. paṇa+pāda+māṣa+śatātपण+पाद+माष+शतात्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   pप्	paṇaपण	paṇaपण	paṇa [word]पण [wओर्द्]	paṇपण् + plus aअ
   pप्	pādaपाद	pādaपाद	pāda [word]पाद [wओर्द्]	pādपाद् + plus aअ
   mम्	māṣaमाष	māṣaमाष	māṣa [word]माष [wओर्द्]	māṣमाष् + plus aअ
   śश्	śataशत	śatātशतात्	śata [word]शत [wओर्द्]	śatशत् + plus ātआत्

2. yatयत्

   Part	Lexeme	Sandhi form	Meaning	Stem
   yय्	yatयत्	yatयत्	yatयत्	yatयत्

Anuvṛtti

1. chaḥछः 5·1·1

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   cच्	chaछ	chaḥछः	īyaईय	chछ् + plus aḥअः

2. ṭhañठञ् 5·1·18

   Part	Lexeme	Sandhi form	Meaning	Stem
   ṭट्	ṭhañठञ्	ṭhañठञ्	ṭhañठञ्	ṭhañठञ्

3. ṭhakठक् 5·1·19

   Part	Lexeme	Sandhi form	Meaning	Stem
   ṭट्	ṭhakठक्	ṭhakठक्	ṭhakठक्	ṭhakठक्

4. adhyardha+pūrva+dvigoḥअध्यर्ध+पूर्व+द्विगोः 5·1·28

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	adhyardhaअध्यर्ध	adhyardhaअध्यर्ध	adhyardha [word]	adhyardhअध्यर्ध् + plus aअ
   pप्	pūrvaपूर्व	pūrvaपूर्व	antecedent	pūrvaपूर्व
   dद्	dviguद्विगु	dvigoḥद्विगोः	dviguद्विगु	dvigद्विग् + plus oḥओः