Declension table of ?niravayavatva

Neuter	Singular	Dual	Plural
Nominative	niravayavatvam	niravayavatve	niravayavatvāni
Vocative	niravayavatva	niravayavatve	niravayavatvāni
Accusative	niravayavatvam	niravayavatve	niravayavatvāni
Instrumental	niravayavatvena	niravayavatvābhyām	niravayavatvaiḥ
Dative	niravayavatvāya	niravayavatvābhyām	niravayavatvebhyaḥ
Ablative	niravayavatvāt	niravayavatvābhyām	niravayavatvebhyaḥ
Genitive	niravayavatvasya	niravayavatvayoḥ	niravayavatvānām
Locative	niravayavatve	niravayavatvayoḥ	niravayavatveṣu

Compound niravayavatva -

Adverb -niravayavatvam -niravayavatvāt