Declension table of ?nivarta

Neuter	Singular	Dual	Plural
Nominative	nivartam	nivarte	nivartāni
Vocative	nivarta	nivarte	nivartāni
Accusative	nivartam	nivarte	nivartāni
Instrumental	nivartena	nivartābhyām	nivartaiḥ
Dative	nivartāya	nivartābhyām	nivartebhyaḥ
Ablative	nivartāt	nivartābhyām	nivartebhyaḥ
Genitive	nivartasya	nivartayoḥ	nivartānām
Locative	nivarte	nivartayoḥ	nivarteṣu

Compound nivarta -

Adverb -nivartam -nivartāt