Declension table of ?varuṇatva

Neuter	Singular	Dual	Plural
Nominative	varuṇatvam	varuṇatve	varuṇatvāni
Vocative	varuṇatva	varuṇatve	varuṇatvāni
Accusative	varuṇatvam	varuṇatve	varuṇatvāni
Instrumental	varuṇatvena	varuṇatvābhyām	varuṇatvaiḥ
Dative	varuṇatvāya	varuṇatvābhyām	varuṇatvebhyaḥ
Ablative	varuṇatvāt	varuṇatvābhyām	varuṇatvebhyaḥ
Genitive	varuṇatvasya	varuṇatvayoḥ	varuṇatvānām
Locative	varuṇatve	varuṇatvayoḥ	varuṇatveṣu

Compound varuṇatva -

Adverb -varuṇatvam -varuṇatvāt