Declension table of ?vivavri

Neuter	Singular	Dual	Plural
Nominative	vivavri	vivavriṇī	vivavrīṇi
Vocative	vivavri	vivavriṇī	vivavrīṇi
Accusative	vivavri	vivavriṇī	vivavrīṇi
Instrumental	vivavriṇā	vivavribhyām	vivavribhiḥ
Dative	vivavriṇe	vivavribhyām	vivavribhyaḥ
Ablative	vivavriṇaḥ	vivavribhyām	vivavribhyaḥ
Genitive	vivavriṇaḥ	vivavriṇoḥ	vivavrīṇām
Locative	vivavriṇi	vivavriṇoḥ	vivavriṣu

Compound vivavri -

Adverb -vivavri