Declension table of ?kārṣṇāyasa

Masculine	Singular	Dual	Plural
Nominative	kārṣṇāyasaḥ	kārṣṇāyasau	kārṣṇāyasāḥ
Vocative	kārṣṇāyasa	kārṣṇāyasau	kārṣṇāyasāḥ
Accusative	kārṣṇāyasam	kārṣṇāyasau	kārṣṇāyasān
Instrumental	kārṣṇāyasena	kārṣṇāyasābhyām	kārṣṇāyasaiḥ kārṣṇāyasebhiḥ
Dative	kārṣṇāyasāya	kārṣṇāyasābhyām	kārṣṇāyasebhyaḥ
Ablative	kārṣṇāyasāt	kārṣṇāyasābhyām	kārṣṇāyasebhyaḥ
Genitive	kārṣṇāyasasya	kārṣṇāyasayoḥ	kārṣṇāyasānām
Locative	kārṣṇāyase	kārṣṇāyasayoḥ	kārṣṇāyaseṣu

Compound kārṣṇāyasa -

Adverb -kārṣṇāyasam -kārṣṇāyasāt