Declension table of ?dhvanya

Masculine	Singular	Dual	Plural
Nominative	dhvanyaḥ	dhvanyau	dhvanyāḥ
Vocative	dhvanya	dhvanyau	dhvanyāḥ
Accusative	dhvanyam	dhvanyau	dhvanyān
Instrumental	dhvanyena	dhvanyābhyām	dhvanyaiḥ dhvanyebhiḥ
Dative	dhvanyāya	dhvanyābhyām	dhvanyebhyaḥ
Ablative	dhvanyāt	dhvanyābhyām	dhvanyebhyaḥ
Genitive	dhvanyasya	dhvanyayoḥ	dhvanyānām
Locative	dhvanye	dhvanyayoḥ	dhvanyeṣu

Compound dhvanya -

Adverb -dhvanyam -dhvanyāt