Declension table of ?kārṣṇāyasa

Neuter	Singular	Dual	Plural
Nominative	kārṣṇāyasam	kārṣṇāyase	kārṣṇāyasāni
Vocative	kārṣṇāyasa	kārṣṇāyase	kārṣṇāyasāni
Accusative	kārṣṇāyasam	kārṣṇāyase	kārṣṇāyasāni
Instrumental	kārṣṇāyasena	kārṣṇāyasābhyām	kārṣṇāyasaiḥ
Dative	kārṣṇāyasāya	kārṣṇāyasābhyām	kārṣṇāyasebhyaḥ
Ablative	kārṣṇāyasāt	kārṣṇāyasābhyām	kārṣṇāyasebhyaḥ
Genitive	kārṣṇāyasasya	kārṣṇāyasayoḥ	kārṣṇāyasānām
Locative	kārṣṇāyase	kārṣṇāyasayoḥ	kārṣṇāyaseṣu

Compound kārṣṇāyasa -

Adverb -kārṣṇāyasam -kārṣṇāyasāt