Declension table of ?āpyāyana

Neuter	Singular	Dual	Plural
Nominative	āpyāyanam	āpyāyane	āpyāyanāni
Vocative	āpyāyana	āpyāyane	āpyāyanāni
Accusative	āpyāyanam	āpyāyane	āpyāyanāni
Instrumental	āpyāyanena	āpyāyanābhyām	āpyāyanaiḥ
Dative	āpyāyanāya	āpyāyanābhyām	āpyāyanebhyaḥ
Ablative	āpyāyanāt	āpyāyanābhyām	āpyāyanebhyaḥ
Genitive	āpyāyanasya	āpyāyanayoḥ	āpyāyanānām
Locative	āpyāyane	āpyāyanayoḥ	āpyāyaneṣu

Compound āpyāyana -

Adverb -āpyāyanam -āpyāyanāt