Declension table of ?nihnuvāna

Neuter	Singular	Dual	Plural
Nominative	nihnuvānam	nihnuvāne	nihnuvānāni
Vocative	nihnuvāna	nihnuvāne	nihnuvānāni
Accusative	nihnuvānam	nihnuvāne	nihnuvānāni
Instrumental	nihnuvānena	nihnuvānābhyām	nihnuvānaiḥ
Dative	nihnuvānāya	nihnuvānābhyām	nihnuvānebhyaḥ
Ablative	nihnuvānāt	nihnuvānābhyām	nihnuvānebhyaḥ
Genitive	nihnuvānasya	nihnuvānayoḥ	nihnuvānānām
Locative	nihnuvāne	nihnuvānayoḥ	nihnuvāneṣu

Compound nihnuvāna -

Adverb -nihnuvānam -nihnuvānāt