Declension table of ?upāṅkya

Neuter	Singular	Dual	Plural
Nominative	upāṅkyam	upāṅkye	upāṅkyāni
Vocative	upāṅkya	upāṅkye	upāṅkyāni
Accusative	upāṅkyam	upāṅkye	upāṅkyāni
Instrumental	upāṅkyena	upāṅkyābhyām	upāṅkyaiḥ
Dative	upāṅkyāya	upāṅkyābhyām	upāṅkyebhyaḥ
Ablative	upāṅkyāt	upāṅkyābhyām	upāṅkyebhyaḥ
Genitive	upāṅkyasya	upāṅkyayoḥ	upāṅkyānām
Locative	upāṅkye	upāṅkyayoḥ	upāṅkyeṣu

Compound upāṅkya -

Adverb -upāṅkyam -upāṅkyāt