Declension table of ?dadhna

Masculine	Singular	Dual	Plural
Nominative	dadhnaḥ	dadhnau	dadhnāḥ
Vocative	dadhna	dadhnau	dadhnāḥ
Accusative	dadhnam	dadhnau	dadhnān
Instrumental	dadhnena	dadhnābhyām	dadhnaiḥ dadhnebhiḥ
Dative	dadhnāya	dadhnābhyām	dadhnebhyaḥ
Ablative	dadhnāt	dadhnābhyām	dadhnebhyaḥ
Genitive	dadhnasya	dadhnayoḥ	dadhnānām
Locative	dadhne	dadhnayoḥ	dadhneṣu

Compound dadhna -

Adverb -dadhnam -dadhnāt