Pāṇini sūtras

The fourth case-affix is employed in denoting the object (karma) of that verb, which is suppressed (sthâni) in a sentence, and which has in construction (upapada) therewith another verb, denoting an action, performed for the sake of the future action (kriyârthe III.3.10). In other words, when the sense of an infinitive of purpose formed by ‘tumun’ and ‘nvul’ (III.3.10,) is suppressed in a sentence, the object of this infinitive is put in the Dative case.

1. kriyā+artha+upapadasyaक्रिया+अर्थ+उपपदस्य

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   kक्	kriyāक्रिया	kriyāक्रिया	verb	kriyक्रिय् + plus āआ
   aअ	arthaअर्थ	arthaअर्थ	sense	arthअर्थ् + plus aअ
   uउ	upapadaउपपद	upapadasyaउपपदस्य	modifier	upapadउपपद् + plus asyaअस्य

2. caच

   Part	Lexeme	Sandhi form	Meaning	Stem
   cच्	caच	caच	besides	caच

3. karmaṇiकर्मणि

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   kक्	karmanकर्मन्	karmaṇiकर्मणि	object	karmकर्म् + plus aṇiअणि

4. sthāninaḥस्थानिनः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	sthāninस्थानिन्	sthāninaḥस्थानिनः	implicit	sthānस्थान् + plus inaḥइनः

Anuvṛtti

1. a+abhinihiteअ+अभिनिहिते 2·3·1

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	naन	aअ	not	naन
   aअ	abhidhāअभिधा	abhinihiteअभिनिहिते	express	abhihitअभिहित् + plus iteइते

2. caturthīचतुर्थी 2·3·13

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   cच्	caturthīचतुर्थी	caturthīचतुर्थी	dative	caturthचतुर्थ् + plus īई