Pāṇini sūtras

The affix ac comes after the verb śī ‘to lie down’ when in composition with a case-inflected word indicating location, i. e., in the locative case.

1. adhikaraṇeअधिकरणे

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	adhikaraṇaअधिकरण	adhikaraṇeअधिकरणे	location	adhikaraṇअधिकरण् + plus eए

2. śeteḥशेतेः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   śश्	śetiशेति	śeteḥशेतेः	śīशी	śetशेत् + plus eḥएः

Anuvṛtti

1. supiसुपि 3·2·4

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	supसुप्	supiसुपि	case ending	supसुप् + plus iइ

2. acअच् 3·2·9

   Part	Lexeme	Sandhi form	Meaning	Stem
   aअ	acअच्	acअच्	aCअC	acअच्