Declension table of ?dūyana

Neuter	Singular	Dual	Plural
Nominative	dūyanam	dūyane	dūyanāni
Vocative	dūyana	dūyane	dūyanāni
Accusative	dūyanam	dūyane	dūyanāni
Instrumental	dūyanena	dūyanābhyām	dūyanaiḥ
Dative	dūyanāya	dūyanābhyām	dūyanebhyaḥ
Ablative	dūyanāt	dūyanābhyām	dūyanebhyaḥ
Genitive	dūyanasya	dūyanayoḥ	dūyanānām
Locative	dūyane	dūyanayoḥ	dūyaneṣu

Compound dūyana -

Adverb -dūyanam -dūyanāt