Declension table of ?naśitavya

Neuter	Singular	Dual	Plural
Nominative	naśitavyam	naśitavye	naśitavyāni
Vocative	naśitavya	naśitavye	naśitavyāni
Accusative	naśitavyam	naśitavye	naśitavyāni
Instrumental	naśitavyena	naśitavyābhyām	naśitavyaiḥ
Dative	naśitavyāya	naśitavyābhyām	naśitavyebhyaḥ
Ablative	naśitavyāt	naśitavyābhyām	naśitavyebhyaḥ
Genitive	naśitavyasya	naśitavyayoḥ	naśitavyānām
Locative	naśitavye	naśitavyayoḥ	naśitavyeṣu

Compound naśitavya -

Adverb -naśitavyam -naśitavyāt