Declension table of ?kaviya

Neuter	Singular	Dual	Plural
Nominative	kaviyam	kaviye	kaviyāni
Vocative	kaviya	kaviye	kaviyāni
Accusative	kaviyam	kaviye	kaviyāni
Instrumental	kaviyena	kaviyābhyām	kaviyaiḥ
Dative	kaviyāya	kaviyābhyām	kaviyebhyaḥ
Ablative	kaviyāt	kaviyābhyām	kaviyebhyaḥ
Genitive	kaviyasya	kaviyayoḥ	kaviyānām
Locative	kaviye	kaviyayoḥ	kaviyeṣu

Compound kaviya -

Adverb -kaviyam -kaviyāt