Declension table of ?vivadhika

Neuter	Singular	Dual	Plural
Nominative	vivadhikam	vivadhike	vivadhikāni
Vocative	vivadhika	vivadhike	vivadhikāni
Accusative	vivadhikam	vivadhike	vivadhikāni
Instrumental	vivadhikena	vivadhikābhyām	vivadhikaiḥ
Dative	vivadhikāya	vivadhikābhyām	vivadhikebhyaḥ
Ablative	vivadhikāt	vivadhikābhyām	vivadhikebhyaḥ
Genitive	vivadhikasya	vivadhikayoḥ	vivadhikānām
Locative	vivadhike	vivadhikayoḥ	vivadhikeṣu

Compound vivadhika -

Adverb -vivadhikam -vivadhikāt