Declension table of ?rūṣaka

Masculine	Singular	Dual	Plural
Nominative	rūṣakaḥ	rūṣakau	rūṣakāḥ
Vocative	rūṣaka	rūṣakau	rūṣakāḥ
Accusative	rūṣakam	rūṣakau	rūṣakān
Instrumental	rūṣakeṇa	rūṣakābhyām	rūṣakaiḥ rūṣakebhiḥ
Dative	rūṣakāya	rūṣakābhyām	rūṣakebhyaḥ
Ablative	rūṣakāt	rūṣakābhyām	rūṣakebhyaḥ
Genitive	rūṣakasya	rūṣakayoḥ	rūṣakāṇām
Locative	rūṣake	rūṣakayoḥ	rūṣakeṣu

Compound rūṣaka -

Adverb -rūṣakam -rūṣakāt