Declension table of ?supāna

Masculine	Singular	Dual	Plural
Nominative	supānaḥ	supānau	supānāḥ
Vocative	supāna	supānau	supānāḥ
Accusative	supānam	supānau	supānān
Instrumental	supānena	supānābhyām	supānaiḥ supānebhiḥ
Dative	supānāya	supānābhyām	supānebhyaḥ
Ablative	supānāt	supānābhyām	supānebhyaḥ
Genitive	supānasya	supānayoḥ	supānānām
Locative	supāne	supānayoḥ	supāneṣu

Compound supāna -

Adverb -supānam -supānāt