Declension table of ?kopayamāna

Neuter	Singular	Dual	Plural
Nominative	kopayamānam	kopayamāne	kopayamānāni
Vocative	kopayamāna	kopayamāne	kopayamānāni
Accusative	kopayamānam	kopayamāne	kopayamānāni
Instrumental	kopayamānena	kopayamānābhyām	kopayamānaiḥ
Dative	kopayamānāya	kopayamānābhyām	kopayamānebhyaḥ
Ablative	kopayamānāt	kopayamānābhyām	kopayamānebhyaḥ
Genitive	kopayamānasya	kopayamānayoḥ	kopayamānānām
Locative	kopayamāne	kopayamānayoḥ	kopayamāneṣu

Compound kopayamāna -

Adverb -kopayamānam -kopayamānāt