Declension table of ?prayatana

Neuter	Singular	Dual	Plural
Nominative	prayatanam	prayatane	prayatanāni
Vocative	prayatana	prayatane	prayatanāni
Accusative	prayatanam	prayatane	prayatanāni
Instrumental	prayatanena	prayatanābhyām	prayatanaiḥ
Dative	prayatanāya	prayatanābhyām	prayatanebhyaḥ
Ablative	prayatanāt	prayatanābhyām	prayatanebhyaḥ
Genitive	prayatanasya	prayatanayoḥ	prayatanānām
Locative	prayatane	prayatanayoḥ	prayataneṣu

Compound prayatana -

Adverb -prayatanam -prayatanāt