Declension table of ?supāna

Neuter	Singular	Dual	Plural
Nominative	supānam	supāne	supānāni
Vocative	supāna	supāne	supānāni
Accusative	supānam	supāne	supānāni
Instrumental	supānena	supānābhyām	supānaiḥ
Dative	supānāya	supānābhyām	supānebhyaḥ
Ablative	supānāt	supānābhyām	supānebhyaḥ
Genitive	supānasya	supānayoḥ	supānānām
Locative	supāne	supānayoḥ	supāneṣu

Compound supāna -

Adverb -supānam -supānāt