Declension table of ?plavana

Neuter	Singular	Dual	Plural
Nominative	plavanam	plavane	plavanāni
Vocative	plavana	plavane	plavanāni
Accusative	plavanam	plavane	plavanāni
Instrumental	plavanena	plavanābhyām	plavanaiḥ
Dative	plavanāya	plavanābhyām	plavanebhyaḥ
Ablative	plavanāt	plavanābhyām	plavanebhyaḥ
Genitive	plavanasya	plavanayoḥ	plavanānām
Locative	plavane	plavanayoḥ	plavaneṣu

Compound plavana -

Adverb -plavanam -plavanāt