Declension table of ?dadhvaṇāna

Masculine	Singular	Dual	Plural
Nominative	dadhvaṇānaḥ	dadhvaṇānau	dadhvaṇānāḥ
Vocative	dadhvaṇāna	dadhvaṇānau	dadhvaṇānāḥ
Accusative	dadhvaṇānam	dadhvaṇānau	dadhvaṇānān
Instrumental	dadhvaṇānena	dadhvaṇānābhyām	dadhvaṇānaiḥ dadhvaṇānebhiḥ
Dative	dadhvaṇānāya	dadhvaṇānābhyām	dadhvaṇānebhyaḥ
Ablative	dadhvaṇānāt	dadhvaṇānābhyām	dadhvaṇānebhyaḥ
Genitive	dadhvaṇānasya	dadhvaṇānayoḥ	dadhvaṇānānām
Locative	dadhvaṇāne	dadhvaṇānayoḥ	dadhvaṇāneṣu

Compound dadhvaṇāna -

Adverb -dadhvaṇānam -dadhvaṇānāt