Declension table of ?dyavya

Neuter	Singular	Dual	Plural
Nominative	dyavyam	dyavye	dyavyāni
Vocative	dyavya	dyavye	dyavyāni
Accusative	dyavyam	dyavye	dyavyāni
Instrumental	dyavyena	dyavyābhyām	dyavyaiḥ
Dative	dyavyāya	dyavyābhyām	dyavyebhyaḥ
Ablative	dyavyāt	dyavyābhyām	dyavyebhyaḥ
Genitive	dyavyasya	dyavyayoḥ	dyavyānām
Locative	dyavye	dyavyayoḥ	dyavyeṣu

Compound dyavya -

Adverb -dyavyam -dyavyāt