Declension table of ?dyautāna

Neuter	Singular	Dual	Plural
Nominative	dyautānam	dyautāne	dyautānāni
Vocative	dyautāna	dyautāne	dyautānāni
Accusative	dyautānam	dyautāne	dyautānāni
Instrumental	dyautānena	dyautānābhyām	dyautānaiḥ
Dative	dyautānāya	dyautānābhyām	dyautānebhyaḥ
Ablative	dyautānāt	dyautānābhyām	dyautānebhyaḥ
Genitive	dyautānasya	dyautānayoḥ	dyautānānām
Locative	dyautāne	dyautānayoḥ	dyautāneṣu

Compound dyautāna -

Adverb -dyautānam -dyautānāt