Declension table of ?vaṅkya

Neuter	Singular	Dual	Plural
Nominative	vaṅkyam	vaṅkye	vaṅkyāni
Vocative	vaṅkya	vaṅkye	vaṅkyāni
Accusative	vaṅkyam	vaṅkye	vaṅkyāni
Instrumental	vaṅkyena	vaṅkyābhyām	vaṅkyaiḥ
Dative	vaṅkyāya	vaṅkyābhyām	vaṅkyebhyaḥ
Ablative	vaṅkyāt	vaṅkyābhyām	vaṅkyebhyaḥ
Genitive	vaṅkyasya	vaṅkyayoḥ	vaṅkyānām
Locative	vaṅkye	vaṅkyayoḥ	vaṅkyeṣu

Compound vaṅkya -

Adverb -vaṅkyam -vaṅkyāt