Declension table of ?upapāyana

Neuter	Singular	Dual	Plural
Nominative	upapāyanam	upapāyane	upapāyanāni
Vocative	upapāyana	upapāyane	upapāyanāni
Accusative	upapāyanam	upapāyane	upapāyanāni
Instrumental	upapāyanena	upapāyanābhyām	upapāyanaiḥ
Dative	upapāyanāya	upapāyanābhyām	upapāyanebhyaḥ
Ablative	upapāyanāt	upapāyanābhyām	upapāyanebhyaḥ
Genitive	upapāyanasya	upapāyanayoḥ	upapāyanānām
Locative	upapāyane	upapāyanayoḥ	upapāyaneṣu

Compound upapāyana -

Adverb -upapāyanam -upapāyanāt