Declension table of ?dhanvana

Neuter	Singular	Dual	Plural
Nominative	dhanvanam	dhanvane	dhanvanāni
Vocative	dhanvana	dhanvane	dhanvanāni
Accusative	dhanvanam	dhanvane	dhanvanāni
Instrumental	dhanvanena	dhanvanābhyām	dhanvanaiḥ
Dative	dhanvanāya	dhanvanābhyām	dhanvanebhyaḥ
Ablative	dhanvanāt	dhanvanābhyām	dhanvanebhyaḥ
Genitive	dhanvanasya	dhanvanayoḥ	dhanvanānām
Locative	dhanvane	dhanvanayoḥ	dhanvaneṣu

Compound dhanvana -

Adverb -dhanvanam -dhanvanāt