Declension table of ?vivadhika

Masculine	Singular	Dual	Plural
Nominative	vivadhikaḥ	vivadhikau	vivadhikāḥ
Vocative	vivadhika	vivadhikau	vivadhikāḥ
Accusative	vivadhikam	vivadhikau	vivadhikān
Instrumental	vivadhikena	vivadhikābhyām	vivadhikaiḥ vivadhikebhiḥ
Dative	vivadhikāya	vivadhikābhyām	vivadhikebhyaḥ
Ablative	vivadhikāt	vivadhikābhyām	vivadhikebhyaḥ
Genitive	vivadhikasya	vivadhikayoḥ	vivadhikānām
Locative	vivadhike	vivadhikayoḥ	vivadhikeṣu

Compound vivadhika -

Adverb -vivadhikam -vivadhikāt