Declension table of ?vivas

Masculine	Singular	Dual	Plural
Nominative	vivān	vivāṃsau	vivāṃsaḥ
Vocative	vivan	vivāṃsau	vivāṃsaḥ
Accusative	vivāṃsam	vivāṃsau	vuṣaḥ
Instrumental	vuṣā	vivadbhyām	vivadbhiḥ
Dative	vuṣe	vivadbhyām	vivadbhyaḥ
Ablative	vuṣaḥ	vivadbhyām	vivadbhyaḥ
Genitive	vuṣaḥ	vuṣoḥ	vuṣām
Locative	vuṣi	vuṣoḥ	vivatsu

Compound vivat -

Adverb -vivas