Declension table of ?vivāsana

Masculine	Singular	Dual	Plural
Nominative	vivāsanaḥ	vivāsanau	vivāsanāḥ
Vocative	vivāsana	vivāsanau	vivāsanāḥ
Accusative	vivāsanam	vivāsanau	vivāsanān
Instrumental	vivāsanena	vivāsanābhyām	vivāsanaiḥ vivāsanebhiḥ
Dative	vivāsanāya	vivāsanābhyām	vivāsanebhyaḥ
Ablative	vivāsanāt	vivāsanābhyām	vivāsanebhyaḥ
Genitive	vivāsanasya	vivāsanayoḥ	vivāsanānām
Locative	vivāsane	vivāsanayoḥ	vivāsaneṣu

Compound vivāsana -

Adverb -vivāsanam -vivāsanāt