Declension table of ?prayuvana

Neuter	Singular	Dual	Plural
Nominative	prayuvanam	prayuvane	prayuvanāni
Vocative	prayuvana	prayuvane	prayuvanāni
Accusative	prayuvanam	prayuvane	prayuvanāni
Instrumental	prayuvanena	prayuvanābhyām	prayuvanaiḥ
Dative	prayuvanāya	prayuvanābhyām	prayuvanebhyaḥ
Ablative	prayuvanāt	prayuvanābhyām	prayuvanebhyaḥ
Genitive	prayuvanasya	prayuvanayoḥ	prayuvanānām
Locative	prayuvane	prayuvanayoḥ	prayuvaneṣu

Compound prayuvana -

Adverb -prayuvanam -prayuvanāt