Declension table of ?dīvana

Neuter	Singular	Dual	Plural
Nominative	dīvanam	dīvane	dīvanāni
Vocative	dīvana	dīvane	dīvanāni
Accusative	dīvanam	dīvane	dīvanāni
Instrumental	dīvanena	dīvanābhyām	dīvanaiḥ
Dative	dīvanāya	dīvanābhyām	dīvanebhyaḥ
Ablative	dīvanāt	dīvanābhyām	dīvanebhyaḥ
Genitive	dīvanasya	dīvanayoḥ	dīvanānām
Locative	dīvane	dīvanayoḥ	dīvaneṣu

Compound dīvana -

Adverb -dīvanam -dīvanāt