Declension table of ?prasayana

Neuter	Singular	Dual	Plural
Nominative	prasayanam	prasayane	prasayanāni
Vocative	prasayana	prasayane	prasayanāni
Accusative	prasayanam	prasayane	prasayanāni
Instrumental	prasayanena	prasayanābhyām	prasayanaiḥ
Dative	prasayanāya	prasayanābhyām	prasayanebhyaḥ
Ablative	prasayanāt	prasayanābhyām	prasayanebhyaḥ
Genitive	prasayanasya	prasayanayoḥ	prasayanānām
Locative	prasayane	prasayanayoḥ	prasayaneṣu

Compound prasayana -

Adverb -prasayanam -prasayanāt