Declension table of ?vasāna

Neuter	Singular	Dual	Plural
Nominative	vasānam	vasāne	vasānāni
Vocative	vasāna	vasāne	vasānāni
Accusative	vasānam	vasāne	vasānāni
Instrumental	vasānena	vasānābhyām	vasānaiḥ
Dative	vasānāya	vasānābhyām	vasānebhyaḥ
Ablative	vasānāt	vasānābhyām	vasānebhyaḥ
Genitive	vasānasya	vasānayoḥ	vasānānām
Locative	vasāne	vasānayoḥ	vasāneṣu

Compound vasāna -

Adverb -vasānam -vasānāt