Declension table of ?sārthika

Neuter	Singular	Dual	Plural
Nominative	sārthikam	sārthike	sārthikāni
Vocative	sārthika	sārthike	sārthikāni
Accusative	sārthikam	sārthike	sārthikāni
Instrumental	sārthikena	sārthikābhyām	sārthikaiḥ
Dative	sārthikāya	sārthikābhyām	sārthikebhyaḥ
Ablative	sārthikāt	sārthikābhyām	sārthikebhyaḥ
Genitive	sārthikasya	sārthikayoḥ	sārthikānām
Locative	sārthike	sārthikayoḥ	sārthikeṣu

Compound sārthika -

Adverb -sārthikam -sārthikāt