Declension table of ?cavana

Neuter	Singular	Dual	Plural
Nominative	cavanam	cavane	cavanāni
Vocative	cavana	cavane	cavanāni
Accusative	cavanam	cavane	cavanāni
Instrumental	cavanena	cavanābhyām	cavanaiḥ
Dative	cavanāya	cavanābhyām	cavanebhyaḥ
Ablative	cavanāt	cavanābhyām	cavanebhyaḥ
Genitive	cavanasya	cavanayoḥ	cavanānām
Locative	cavane	cavanayoḥ	cavaneṣu

Compound cavana -

Adverb -cavanam -cavanāt