Declension table of ?vatsatva

Neuter	Singular	Dual	Plural
Nominative	vatsatvam	vatsatve	vatsatvāni
Vocative	vatsatva	vatsatve	vatsatvāni
Accusative	vatsatvam	vatsatve	vatsatvāni
Instrumental	vatsatvena	vatsatvābhyām	vatsatvaiḥ
Dative	vatsatvāya	vatsatvābhyām	vatsatvebhyaḥ
Ablative	vatsatvāt	vatsatvābhyām	vatsatvebhyaḥ
Genitive	vatsatvasya	vatsatvayoḥ	vatsatvānām
Locative	vatsatve	vatsatvayoḥ	vatsatveṣu

Compound vatsatva -

Adverb -vatsatvam -vatsatvāt