Declension table of ?upāpa

Masculine	Singular	Dual	Plural
Nominative	upāpaḥ	upāpau	upāpāḥ
Vocative	upāpa	upāpau	upāpāḥ
Accusative	upāpam	upāpau	upāpān
Instrumental	upāpena	upāpābhyām	upāpaiḥ upāpebhiḥ
Dative	upāpāya	upāpābhyām	upāpebhyaḥ
Ablative	upāpāt	upāpābhyām	upāpebhyaḥ
Genitive	upāpasya	upāpayoḥ	upāpānām
Locative	upāpe	upāpayoḥ	upāpeṣu

Compound upāpa -

Adverb -upāpam -upāpāt