Declension table of ?kṛṣṇayāma

Masculine	Singular	Dual	Plural
Nominative	kṛṣṇayāmaḥ	kṛṣṇayāmau	kṛṣṇayāmāḥ
Vocative	kṛṣṇayāma	kṛṣṇayāmau	kṛṣṇayāmāḥ
Accusative	kṛṣṇayāmam	kṛṣṇayāmau	kṛṣṇayāmān
Instrumental	kṛṣṇayāmena	kṛṣṇayāmābhyām	kṛṣṇayāmaiḥ kṛṣṇayāmebhiḥ
Dative	kṛṣṇayāmāya	kṛṣṇayāmābhyām	kṛṣṇayāmebhyaḥ
Ablative	kṛṣṇayāmāt	kṛṣṇayāmābhyām	kṛṣṇayāmebhyaḥ
Genitive	kṛṣṇayāmasya	kṛṣṇayāmayoḥ	kṛṣṇayāmānām
Locative	kṛṣṇayāme	kṛṣṇayāmayoḥ	kṛṣṇayāmeṣu

Compound kṛṣṇayāma -

Adverb -kṛṣṇayāmam -kṛṣṇayāmāt