Declension table of ?kṛṣṇarūpya

Neuter	Singular	Dual	Plural
Nominative	kṛṣṇarūpyam	kṛṣṇarūpye	kṛṣṇarūpyāṇi
Vocative	kṛṣṇarūpya	kṛṣṇarūpye	kṛṣṇarūpyāṇi
Accusative	kṛṣṇarūpyam	kṛṣṇarūpye	kṛṣṇarūpyāṇi
Instrumental	kṛṣṇarūpyeṇa	kṛṣṇarūpyābhyām	kṛṣṇarūpyaiḥ
Dative	kṛṣṇarūpyāya	kṛṣṇarūpyābhyām	kṛṣṇarūpyebhyaḥ
Ablative	kṛṣṇarūpyāt	kṛṣṇarūpyābhyām	kṛṣṇarūpyebhyaḥ
Genitive	kṛṣṇarūpyasya	kṛṣṇarūpyayoḥ	kṛṣṇarūpyāṇām
Locative	kṛṣṇarūpye	kṛṣṇarūpyayoḥ	kṛṣṇarūpyeṣu

Compound kṛṣṇarūpya -

Adverb -kṛṣṇarūpyam -kṛṣṇarūpyāt