Declension table of ?vivīvas

Masculine	Singular	Dual	Plural
Nominative	vivīvān	vivīvāṃsau	vivīvāṃsaḥ
Vocative	vivīvan	vivīvāṃsau	vivīvāṃsaḥ
Accusative	vivīvāṃsam	vivīvāṃsau	vivyuṣaḥ
Instrumental	vivyuṣā	vivīvadbhyām	vivīvadbhiḥ
Dative	vivyuṣe	vivīvadbhyām	vivīvadbhyaḥ
Ablative	vivyuṣaḥ	vivīvadbhyām	vivīvadbhyaḥ
Genitive	vivyuṣaḥ	vivyuṣoḥ	vivyuṣām
Locative	vivyuṣi	vivyuṣoḥ	vivīvatsu

Compound vivīvat -

Adverb -vivīvas