Declension table of ?dadanvāna

Neuter	Singular	Dual	Plural
Nominative	dadanvānam	dadanvāne	dadanvānāni
Vocative	dadanvāna	dadanvāne	dadanvānāni
Accusative	dadanvānam	dadanvāne	dadanvānāni
Instrumental	dadanvānena	dadanvānābhyām	dadanvānaiḥ
Dative	dadanvānāya	dadanvānābhyām	dadanvānebhyaḥ
Ablative	dadanvānāt	dadanvānābhyām	dadanvānebhyaḥ
Genitive	dadanvānasya	dadanvānayoḥ	dadanvānānām
Locative	dadanvāne	dadanvānayoḥ	dadanvāneṣu

Compound dadanvāna -

Adverb -dadanvānam -dadanvānāt