Declension table of ?arthitavya

Neuter	Singular	Dual	Plural
Nominative	arthitavyam	arthitavye	arthitavyāni
Vocative	arthitavya	arthitavye	arthitavyāni
Accusative	arthitavyam	arthitavye	arthitavyāni
Instrumental	arthitavyena	arthitavyābhyām	arthitavyaiḥ
Dative	arthitavyāya	arthitavyābhyām	arthitavyebhyaḥ
Ablative	arthitavyāt	arthitavyābhyām	arthitavyebhyaḥ
Genitive	arthitavyasya	arthitavyayoḥ	arthitavyānām
Locative	arthitavye	arthitavyayoḥ	arthitavyeṣu

Compound arthitavya -

Adverb -arthitavyam -arthitavyāt