Declension table of ?copya

Neuter	Singular	Dual	Plural
Nominative	copyam	copye	copyāni
Vocative	copya	copye	copyāni
Accusative	copyam	copye	copyāni
Instrumental	copyena	copyābhyām	copyaiḥ
Dative	copyāya	copyābhyām	copyebhyaḥ
Ablative	copyāt	copyābhyām	copyebhyaḥ
Genitive	copyasya	copyayoḥ	copyānām
Locative	copye	copyayoḥ	copyeṣu

Compound copya -

Adverb -copyam -copyāt