Declension table of ?dvayavādin

Masculine	Singular	Dual	Plural
Nominative	dvayavādī	dvayavādinau	dvayavādinaḥ
Vocative	dvayavādin	dvayavādinau	dvayavādinaḥ
Accusative	dvayavādinam	dvayavādinau	dvayavādinaḥ
Instrumental	dvayavādinā	dvayavādibhyām	dvayavādibhiḥ
Dative	dvayavādine	dvayavādibhyām	dvayavādibhyaḥ
Ablative	dvayavādinaḥ	dvayavādibhyām	dvayavādibhyaḥ
Genitive	dvayavādinaḥ	dvayavādinoḥ	dvayavādinām
Locative	dvayavādini	dvayavādinoḥ	dvayavādiṣu

Compound dvayavādi -

Adverb -dvayavādi