Declension table of ?duravāpa

Masculine	Singular	Dual	Plural
Nominative	duravāpaḥ	duravāpau	duravāpāḥ
Vocative	duravāpa	duravāpau	duravāpāḥ
Accusative	duravāpam	duravāpau	duravāpān
Instrumental	duravāpeṇa	duravāpābhyām	duravāpaiḥ duravāpebhiḥ
Dative	duravāpāya	duravāpābhyām	duravāpebhyaḥ
Ablative	duravāpāt	duravāpābhyām	duravāpebhyaḥ
Genitive	duravāpasya	duravāpayoḥ	duravāpāṇām
Locative	duravāpe	duravāpayoḥ	duravāpeṣu

Compound duravāpa -

Adverb -duravāpam -duravāpāt