Declension table of ?samadvan

Neuter	Singular	Dual	Plural
Nominative	samadva	samadvnī samadvanī	samadvāni
Vocative	samadvan samadva	samadvnī samadvanī	samadvāni
Accusative	samadva	samadvnī samadvanī	samadvāni
Instrumental	samadvanā	samadvabhyām	samadvabhiḥ
Dative	samadvane	samadvabhyām	samadvabhyaḥ
Ablative	samadvanaḥ	samadvabhyām	samadvabhyaḥ
Genitive	samadvanaḥ	samadvanoḥ	samadvanām
Locative	samadvani	samadvanoḥ	samadvasu

Compound samadva -

Adverb -samadva -samadvam