Declension table of ?duroṇayu

Masculine	Singular	Dual	Plural
Nominative	duroṇayuḥ	duroṇayū	duroṇayavaḥ
Vocative	duroṇayo	duroṇayū	duroṇayavaḥ
Accusative	duroṇayum	duroṇayū	duroṇayūn
Instrumental	duroṇayunā	duroṇayubhyām	duroṇayubhiḥ
Dative	duroṇayave	duroṇayubhyām	duroṇayubhyaḥ
Ablative	duroṇayoḥ	duroṇayubhyām	duroṇayubhyaḥ
Genitive	duroṇayoḥ	duroṇayvoḥ	duroṇayūnām
Locative	duroṇayau	duroṇayvoḥ	duroṇayuṣu

Compound duroṇayu -

Adverb -duroṇayu