Declension table of vivasvat

Masculine	Singular	Dual	Plural
Nominative	vivasvān	vivasvantau	vivasvantaḥ
Vocative	vivasvan	vivasvantau	vivasvantaḥ
Accusative	vivasvantam	vivasvantau	vivasvataḥ
Instrumental	vivasvatā	vivasvadbhyām	vivasvadbhiḥ
Dative	vivasvate	vivasvadbhyām	vivasvadbhyaḥ
Ablative	vivasvataḥ	vivasvadbhyām	vivasvadbhyaḥ
Genitive	vivasvataḥ	vivasvatoḥ	vivasvatām
Locative	vivasvati	vivasvatoḥ	vivasvatsu

Compound vivasvat -

Adverb -vivasvantam