Declension table of ?upatāpaka

Neuter	Singular	Dual	Plural
Nominative	upatāpakam	upatāpake	upatāpakāni
Vocative	upatāpaka	upatāpake	upatāpakāni
Accusative	upatāpakam	upatāpake	upatāpakāni
Instrumental	upatāpakena	upatāpakābhyām	upatāpakaiḥ
Dative	upatāpakāya	upatāpakābhyām	upatāpakebhyaḥ
Ablative	upatāpakāt	upatāpakābhyām	upatāpakebhyaḥ
Genitive	upatāpakasya	upatāpakayoḥ	upatāpakānām
Locative	upatāpake	upatāpakayoḥ	upatāpakeṣu

Compound upatāpaka -

Adverb -upatāpakam -upatāpakāt