Declension table of ?pratyāśatva

Neuter	Singular	Dual	Plural
Nominative	pratyāśatvam	pratyāśatve	pratyāśatvāni
Vocative	pratyāśatva	pratyāśatve	pratyāśatvāni
Accusative	pratyāśatvam	pratyāśatve	pratyāśatvāni
Instrumental	pratyāśatvena	pratyāśatvābhyām	pratyāśatvaiḥ
Dative	pratyāśatvāya	pratyāśatvābhyām	pratyāśatvebhyaḥ
Ablative	pratyāśatvāt	pratyāśatvābhyām	pratyāśatvebhyaḥ
Genitive	pratyāśatvasya	pratyāśatvayoḥ	pratyāśatvānām
Locative	pratyāśatve	pratyāśatvayoḥ	pratyāśatveṣu

Compound pratyāśatva -

Adverb -pratyāśatvam -pratyāśatvāt