Declension table of ?nihatatva

Neuter	Singular	Dual	Plural
Nominative	nihatatvam	nihatatve	nihatatvāni
Vocative	nihatatva	nihatatve	nihatatvāni
Accusative	nihatatvam	nihatatve	nihatatvāni
Instrumental	nihatatvena	nihatatvābhyām	nihatatvaiḥ
Dative	nihatatvāya	nihatatvābhyām	nihatatvebhyaḥ
Ablative	nihatatvāt	nihatatvābhyām	nihatatvebhyaḥ
Genitive	nihatatvasya	nihatatvayoḥ	nihatatvānām
Locative	nihatatve	nihatatvayoḥ	nihatatveṣu

Compound nihatatva -

Adverb -nihatatvam -nihatatvāt