Declension table of ?prasūna

Neuter	Singular	Dual	Plural
Nominative	prasūnam	prasūne	prasūnāni
Vocative	prasūna	prasūne	prasūnāni
Accusative	prasūnam	prasūne	prasūnāni
Instrumental	prasūnena	prasūnābhyām	prasūnaiḥ
Dative	prasūnāya	prasūnābhyām	prasūnebhyaḥ
Ablative	prasūnāt	prasūnābhyām	prasūnebhyaḥ
Genitive	prasūnasya	prasūnayoḥ	prasūnānām
Locative	prasūne	prasūnayoḥ	prasūneṣu

Compound prasūna -

Adverb -prasūnam -prasūnāt