Declension table of ?naṣṭavya

Neuter	Singular	Dual	Plural
Nominative	naṣṭavyam	naṣṭavye	naṣṭavyāni
Vocative	naṣṭavya	naṣṭavye	naṣṭavyāni
Accusative	naṣṭavyam	naṣṭavye	naṣṭavyāni
Instrumental	naṣṭavyena	naṣṭavyābhyām	naṣṭavyaiḥ
Dative	naṣṭavyāya	naṣṭavyābhyām	naṣṭavyebhyaḥ
Ablative	naṣṭavyāt	naṣṭavyābhyām	naṣṭavyebhyaḥ
Genitive	naṣṭavyasya	naṣṭavyayoḥ	naṣṭavyānām
Locative	naṣṭavye	naṣṭavyayoḥ	naṣṭavyeṣu

Compound naṣṭavya -

Adverb -naṣṭavyam -naṣṭavyāt