Declension table of ?aupāyika

Neuter	Singular	Dual	Plural
Nominative	aupāyikam	aupāyike	aupāyikāni
Vocative	aupāyika	aupāyike	aupāyikāni
Accusative	aupāyikam	aupāyike	aupāyikāni
Instrumental	aupāyikena	aupāyikābhyām	aupāyikaiḥ
Dative	aupāyikāya	aupāyikābhyām	aupāyikebhyaḥ
Ablative	aupāyikāt	aupāyikābhyām	aupāyikebhyaḥ
Genitive	aupāyikasya	aupāyikayoḥ	aupāyikānām
Locative	aupāyike	aupāyikayoḥ	aupāyikeṣu

Compound aupāyika -

Adverb -aupāyikam -aupāyikāt