Declension table of ?nvitavya

Neuter	Singular	Dual	Plural
Nominative	nvitavyam	nvitavye	nvitavyāni
Vocative	nvitavya	nvitavye	nvitavyāni
Accusative	nvitavyam	nvitavye	nvitavyāni
Instrumental	nvitavyena	nvitavyābhyām	nvitavyaiḥ
Dative	nvitavyāya	nvitavyābhyām	nvitavyebhyaḥ
Ablative	nvitavyāt	nvitavyābhyām	nvitavyebhyaḥ
Genitive	nvitavyasya	nvitavyayoḥ	nvitavyānām
Locative	nvitavye	nvitavyayoḥ	nvitavyeṣu

Compound nvitavya -

Adverb -nvitavyam -nvitavyāt