Declension table of ?upādeyatva

Neuter	Singular	Dual	Plural
Nominative	upādeyatvam	upādeyatve	upādeyatvāni
Vocative	upādeyatva	upādeyatve	upādeyatvāni
Accusative	upādeyatvam	upādeyatve	upādeyatvāni
Instrumental	upādeyatvena	upādeyatvābhyām	upādeyatvaiḥ
Dative	upādeyatvāya	upādeyatvābhyām	upādeyatvebhyaḥ
Ablative	upādeyatvāt	upādeyatvābhyām	upādeyatvebhyaḥ
Genitive	upādeyatvasya	upādeyatvayoḥ	upādeyatvānām
Locative	upādeyatve	upādeyatvayoḥ	upādeyatveṣu

Compound upādeyatva -

Adverb -upādeyatvam -upādeyatvāt