Declension table of ?kuṣṇat

Masculine	Singular	Dual	Plural
Nominative	kuṣṇan	kuṣṇantau	kuṣṇantaḥ
Vocative	kuṣṇan	kuṣṇantau	kuṣṇantaḥ
Accusative	kuṣṇantam	kuṣṇantau	kuṣṇataḥ
Instrumental	kuṣṇatā	kuṣṇadbhyām	kuṣṇadbhiḥ
Dative	kuṣṇate	kuṣṇadbhyām	kuṣṇadbhyaḥ
Ablative	kuṣṇataḥ	kuṣṇadbhyām	kuṣṇadbhyaḥ
Genitive	kuṣṇataḥ	kuṣṇatoḥ	kuṣṇatām
Locative	kuṣṇati	kuṣṇatoḥ	kuṣṇatsu

Compound kuṣṇat -

Adverb -kuṣṇantam