Declension table of ?dhravya

Neuter	Singular	Dual	Plural
Nominative	dhravyam	dhravye	dhravyāṇi
Vocative	dhravya	dhravye	dhravyāṇi
Accusative	dhravyam	dhravye	dhravyāṇi
Instrumental	dhravyeṇa	dhravyābhyām	dhravyaiḥ
Dative	dhravyāya	dhravyābhyām	dhravyebhyaḥ
Ablative	dhravyāt	dhravyābhyām	dhravyebhyaḥ
Genitive	dhravyasya	dhravyayoḥ	dhravyāṇām
Locative	dhravye	dhravyayoḥ	dhravyeṣu

Compound dhravya -

Adverb -dhravyam -dhravyāt