Declension table of ?dyūna

Masculine	Singular	Dual	Plural
Nominative	dyūnaḥ	dyūnau	dyūnāḥ
Vocative	dyūna	dyūnau	dyūnāḥ
Accusative	dyūnam	dyūnau	dyūnān
Instrumental	dyūnena	dyūnābhyām	dyūnaiḥ dyūnebhiḥ
Dative	dyūnāya	dyūnābhyām	dyūnebhyaḥ
Ablative	dyūnāt	dyūnābhyām	dyūnebhyaḥ
Genitive	dyūnasya	dyūnayoḥ	dyūnānām
Locative	dyūne	dyūnayoḥ	dyūneṣu

Compound dyūna -

Adverb -dyūnam -dyūnāt