Declension table of ?tumbitavya

Neuter	Singular	Dual	Plural
Nominative	tumbitavyam	tumbitavye	tumbitavyāni
Vocative	tumbitavya	tumbitavye	tumbitavyāni
Accusative	tumbitavyam	tumbitavye	tumbitavyāni
Instrumental	tumbitavyena	tumbitavyābhyām	tumbitavyaiḥ
Dative	tumbitavyāya	tumbitavyābhyām	tumbitavyebhyaḥ
Ablative	tumbitavyāt	tumbitavyābhyām	tumbitavyebhyaḥ
Genitive	tumbitavyasya	tumbitavyayoḥ	tumbitavyānām
Locative	tumbitavye	tumbitavyayoḥ	tumbitavyeṣu

Compound tumbitavya -

Adverb -tumbitavyam -tumbitavyāt