Declension table of ?vivyathvas

Neuter	Singular	Dual	Plural
Nominative	vivyathvat	vivyathuṣī	vivyathvāṃsi
Vocative	vivyathvat	vivyathuṣī	vivyathvāṃsi
Accusative	vivyathvat	vivyathuṣī	vivyathvāṃsi
Instrumental	vivyathuṣā	vivyathvadbhyām	vivyathvadbhiḥ
Dative	vivyathuṣe	vivyathvadbhyām	vivyathvadbhyaḥ
Ablative	vivyathuṣaḥ	vivyathvadbhyām	vivyathvadbhyaḥ
Genitive	vivyathuṣaḥ	vivyathuṣoḥ	vivyathuṣām
Locative	vivyathuṣi	vivyathuṣoḥ	vivyathvatsu

Compound vivyathvat -

Adverb -vivyathvat