Declension table of ?nīvitavya

Neuter	Singular	Dual	Plural
Nominative	nīvitavyam	nīvitavye	nīvitavyāni
Vocative	nīvitavya	nīvitavye	nīvitavyāni
Accusative	nīvitavyam	nīvitavye	nīvitavyāni
Instrumental	nīvitavyena	nīvitavyābhyām	nīvitavyaiḥ
Dative	nīvitavyāya	nīvitavyābhyām	nīvitavyebhyaḥ
Ablative	nīvitavyāt	nīvitavyābhyām	nīvitavyebhyaḥ
Genitive	nīvitavyasya	nīvitavyayoḥ	nīvitavyānām
Locative	nīvitavye	nīvitavyayoḥ	nīvitavyeṣu

Compound nīvitavya -

Adverb -nīvitavyam -nīvitavyāt