Declension table of ?nirdhūmatva

Neuter	Singular	Dual	Plural
Nominative	nirdhūmatvam	nirdhūmatve	nirdhūmatvāni
Vocative	nirdhūmatva	nirdhūmatve	nirdhūmatvāni
Accusative	nirdhūmatvam	nirdhūmatve	nirdhūmatvāni
Instrumental	nirdhūmatvena	nirdhūmatvābhyām	nirdhūmatvaiḥ
Dative	nirdhūmatvāya	nirdhūmatvābhyām	nirdhūmatvebhyaḥ
Ablative	nirdhūmatvāt	nirdhūmatvābhyām	nirdhūmatvebhyaḥ
Genitive	nirdhūmatvasya	nirdhūmatvayoḥ	nirdhūmatvānām
Locative	nirdhūmatve	nirdhūmatvayoḥ	nirdhūmatveṣu

Compound nirdhūmatva -

Adverb -nirdhūmatvam -nirdhūmatvāt