Declension table of ?duḥkhātmakatva

Neuter	Singular	Dual	Plural
Nominative	duḥkhātmakatvam	duḥkhātmakatve	duḥkhātmakatvāni
Vocative	duḥkhātmakatva	duḥkhātmakatve	duḥkhātmakatvāni
Accusative	duḥkhātmakatvam	duḥkhātmakatve	duḥkhātmakatvāni
Instrumental	duḥkhātmakatvena	duḥkhātmakatvābhyām	duḥkhātmakatvaiḥ
Dative	duḥkhātmakatvāya	duḥkhātmakatvābhyām	duḥkhātmakatvebhyaḥ
Ablative	duḥkhātmakatvāt	duḥkhātmakatvābhyām	duḥkhātmakatvebhyaḥ
Genitive	duḥkhātmakatvasya	duḥkhātmakatvayoḥ	duḥkhātmakatvānām
Locative	duḥkhātmakatve	duḥkhātmakatvayoḥ	duḥkhātmakatveṣu

Compound duḥkhātmakatva -

Adverb -duḥkhātmakatvam -duḥkhātmakatvāt