Declension table of ?dhvaṇtavat

Masculine	Singular	Dual	Plural
Nominative	dhvaṇtavān	dhvaṇtavantau	dhvaṇtavantaḥ
Vocative	dhvaṇtavan	dhvaṇtavantau	dhvaṇtavantaḥ
Accusative	dhvaṇtavantam	dhvaṇtavantau	dhvaṇtavataḥ
Instrumental	dhvaṇtavatā	dhvaṇtavadbhyām	dhvaṇtavadbhiḥ
Dative	dhvaṇtavate	dhvaṇtavadbhyām	dhvaṇtavadbhyaḥ
Ablative	dhvaṇtavataḥ	dhvaṇtavadbhyām	dhvaṇtavadbhyaḥ
Genitive	dhvaṇtavataḥ	dhvaṇtavatoḥ	dhvaṇtavatām
Locative	dhvaṇtavati	dhvaṇtavatoḥ	dhvaṇtavatsu

Compound dhvaṇtavat -

Adverb -dhvaṇtavantam