Declension table of ?duścyāva

Neuter	Singular	Dual	Plural
Nominative	duścyāvam	duścyāve	duścyāvāni
Vocative	duścyāva	duścyāve	duścyāvāni
Accusative	duścyāvam	duścyāve	duścyāvāni
Instrumental	duścyāvena	duścyāvābhyām	duścyāvaiḥ
Dative	duścyāvāya	duścyāvābhyām	duścyāvebhyaḥ
Ablative	duścyāvāt	duścyāvābhyām	duścyāvebhyaḥ
Genitive	duścyāvasya	duścyāvayoḥ	duścyāvānām
Locative	duścyāve	duścyāvayoḥ	duścyāveṣu

Compound duścyāva -

Adverb -duścyāvam -duścyāvāt