Declension table of ?nirīhatva

Neuter	Singular	Dual	Plural
Nominative	nirīhatvam	nirīhatve	nirīhatvāni
Vocative	nirīhatva	nirīhatve	nirīhatvāni
Accusative	nirīhatvam	nirīhatve	nirīhatvāni
Instrumental	nirīhatvena	nirīhatvābhyām	nirīhatvaiḥ
Dative	nirīhatvāya	nirīhatvābhyām	nirīhatvebhyaḥ
Ablative	nirīhatvāt	nirīhatvābhyām	nirīhatvebhyaḥ
Genitive	nirīhatvasya	nirīhatvayoḥ	nirīhatvānām
Locative	nirīhatve	nirīhatvayoḥ	nirīhatveṣu

Compound nirīhatva -

Adverb -nirīhatvam -nirīhatvāt