Declension table of ?prapyāna

Neuter	Singular	Dual	Plural
Nominative	prapyānam	prapyāne	prapyānāni
Vocative	prapyāna	prapyāne	prapyānāni
Accusative	prapyānam	prapyāne	prapyānāni
Instrumental	prapyānena	prapyānābhyām	prapyānaiḥ
Dative	prapyānāya	prapyānābhyām	prapyānebhyaḥ
Ablative	prapyānāt	prapyānābhyām	prapyānebhyaḥ
Genitive	prapyānasya	prapyānayoḥ	prapyānānām
Locative	prapyāne	prapyānayoḥ	prapyāneṣu

Compound prapyāna -

Adverb -prapyānam -prapyānāt