Declension table of ?duravastha

Masculine	Singular	Dual	Plural
Nominative	duravasthaḥ	duravasthau	duravasthāḥ
Vocative	duravastha	duravasthau	duravasthāḥ
Accusative	duravastham	duravasthau	duravasthān
Instrumental	duravasthena	duravasthābhyām	duravasthaiḥ duravasthebhiḥ
Dative	duravasthāya	duravasthābhyām	duravasthebhyaḥ
Ablative	duravasthāt	duravasthābhyām	duravasthebhyaḥ
Genitive	duravasthasya	duravasthayoḥ	duravasthānām
Locative	duravasthe	duravasthayoḥ	duravastheṣu

Compound duravastha -

Adverb -duravastham -duravasthāt