Declension table of ?puruṣaka

Neuter	Singular	Dual	Plural
Nominative	puruṣakam	puruṣake	puruṣakāṇi
Vocative	puruṣaka	puruṣake	puruṣakāṇi
Accusative	puruṣakam	puruṣake	puruṣakāṇi
Instrumental	puruṣakeṇa	puruṣakābhyām	puruṣakaiḥ
Dative	puruṣakāya	puruṣakābhyām	puruṣakebhyaḥ
Ablative	puruṣakāt	puruṣakābhyām	puruṣakebhyaḥ
Genitive	puruṣakasya	puruṣakayoḥ	puruṣakāṇām
Locative	puruṣake	puruṣakayoḥ	puruṣakeṣu

Compound puruṣaka -

Adverb -puruṣakam -puruṣakāt