Declension table of ?niṣkya

Neuter	Singular	Dual	Plural
Nominative	niṣkyam	niṣkye	niṣkyāṇi
Vocative	niṣkya	niṣkye	niṣkyāṇi
Accusative	niṣkyam	niṣkye	niṣkyāṇi
Instrumental	niṣkyeṇa	niṣkyābhyām	niṣkyaiḥ
Dative	niṣkyāya	niṣkyābhyām	niṣkyebhyaḥ
Ablative	niṣkyāt	niṣkyābhyām	niṣkyebhyaḥ
Genitive	niṣkyasya	niṣkyayoḥ	niṣkyāṇām
Locative	niṣkye	niṣkyayoḥ	niṣkyeṣu

Compound niṣkya -

Adverb -niṣkyam -niṣkyāt