Declension table of ?duradhva

Masculine	Singular	Dual	Plural
Nominative	duradhvaḥ	duradhvau	duradhvāḥ
Vocative	duradhva	duradhvau	duradhvāḥ
Accusative	duradhvam	duradhvau	duradhvān
Instrumental	duradhvena	duradhvābhyām	duradhvaiḥ duradhvebhiḥ
Dative	duradhvāya	duradhvābhyām	duradhvebhyaḥ
Ablative	duradhvāt	duradhvābhyām	duradhvebhyaḥ
Genitive	duradhvasya	duradhvayoḥ	duradhvānām
Locative	duradhve	duradhvayoḥ	duradhveṣu

Compound duradhva -

Adverb -duradhvam -duradhvāt