Declension table of ?vivilvas

Neuter	Singular	Dual	Plural
Nominative	vivilvat	viviluṣī	vivilvāṃsi
Vocative	vivilvat	viviluṣī	vivilvāṃsi
Accusative	vivilvat	viviluṣī	vivilvāṃsi
Instrumental	viviluṣā	vivilvadbhyām	vivilvadbhiḥ
Dative	viviluṣe	vivilvadbhyām	vivilvadbhyaḥ
Ablative	viviluṣaḥ	vivilvadbhyām	vivilvadbhyaḥ
Genitive	viviluṣaḥ	viviluṣoḥ	viviluṣām
Locative	viviluṣi	viviluṣoḥ	vivilvatsu

Compound vivilvat -

Adverb -vivilvat