Declension table of ?dvayāvin

Masculine	Singular	Dual	Plural
Nominative	dvayāvī	dvayāvinau	dvayāvinaḥ
Vocative	dvayāvin	dvayāvinau	dvayāvinaḥ
Accusative	dvayāvinam	dvayāvinau	dvayāvinaḥ
Instrumental	dvayāvinā	dvayāvibhyām	dvayāvibhiḥ
Dative	dvayāvine	dvayāvibhyām	dvayāvibhyaḥ
Ablative	dvayāvinaḥ	dvayāvibhyām	dvayāvibhyaḥ
Genitive	dvayāvinaḥ	dvayāvinoḥ	dvayāvinām
Locative	dvayāvini	dvayāvinoḥ	dvayāviṣu

Compound dvayāvi -

Adverb -dvayāvi