Declension table of ?prapyāyana

Neuter	Singular	Dual	Plural
Nominative	prapyāyanam	prapyāyane	prapyāyanāni
Vocative	prapyāyana	prapyāyane	prapyāyanāni
Accusative	prapyāyanam	prapyāyane	prapyāyanāni
Instrumental	prapyāyanena	prapyāyanābhyām	prapyāyanaiḥ
Dative	prapyāyanāya	prapyāyanābhyām	prapyāyanebhyaḥ
Ablative	prapyāyanāt	prapyāyanābhyām	prapyāyanebhyaḥ
Genitive	prapyāyanasya	prapyāyanayoḥ	prapyāyanānām
Locative	prapyāyane	prapyāyanayoḥ	prapyāyaneṣu

Compound prapyāyana -

Adverb -prapyāyanam -prapyāyanāt