Declension table of ?samadhva

Masculine	Singular	Dual	Plural
Nominative	samadhvaḥ	samadhvau	samadhvāḥ
Vocative	samadhva	samadhvau	samadhvāḥ
Accusative	samadhvam	samadhvau	samadhvān
Instrumental	samadhvena	samadhvābhyām	samadhvaiḥ samadhvebhiḥ
Dative	samadhvāya	samadhvābhyām	samadhvebhyaḥ
Ablative	samadhvāt	samadhvābhyām	samadhvebhyaḥ
Genitive	samadhvasya	samadhvayoḥ	samadhvānām
Locative	samadhve	samadhvayoḥ	samadhveṣu

Compound samadhva -

Adverb -samadhvam -samadhvāt