Declension table of kūpa

Masculine	Singular	Dual	Plural
Nominative	kūpaḥ	kūpau	kūpāḥ
Vocative	kūpa	kūpau	kūpāḥ
Accusative	kūpam	kūpau	kūpān
Instrumental	kūpena	kūpābhyām	kūpaiḥ kūpebhiḥ
Dative	kūpāya	kūpābhyām	kūpebhyaḥ
Ablative	kūpāt	kūpābhyām	kūpebhyaḥ
Genitive	kūpasya	kūpayoḥ	kūpānām
Locative	kūpe	kūpayoḥ	kūpeṣu

Compound kūpa -

Adverb -kūpam -kūpāt