Declension table of ?kupathaga

Neuter	Singular	Dual	Plural
Nominative	kupathagam	kupathage	kupathagāni
Vocative	kupathaga	kupathage	kupathagāni
Accusative	kupathagam	kupathage	kupathagāni
Instrumental	kupathagena	kupathagābhyām	kupathagaiḥ
Dative	kupathagāya	kupathagābhyām	kupathagebhyaḥ
Ablative	kupathagāt	kupathagābhyām	kupathagebhyaḥ
Genitive	kupathagasya	kupathagayoḥ	kupathagānām
Locative	kupathage	kupathagayoḥ	kupathageṣu

Compound kupathaga -

Adverb -kupathagam -kupathagāt