Declension table of ?riṣīka

Masculine	Singular	Dual	Plural
Nominative	riṣīkaḥ	riṣīkau	riṣīkāḥ
Vocative	riṣīka	riṣīkau	riṣīkāḥ
Accusative	riṣīkam	riṣīkau	riṣīkān
Instrumental	riṣīkeṇa	riṣīkābhyām	riṣīkaiḥ riṣīkebhiḥ
Dative	riṣīkāya	riṣīkābhyām	riṣīkebhyaḥ
Ablative	riṣīkāt	riṣīkābhyām	riṣīkebhyaḥ
Genitive	riṣīkasya	riṣīkayoḥ	riṣīkāṇām
Locative	riṣīke	riṣīkayoḥ	riṣīkeṣu

Compound riṣīka -

Adverb -riṣīkam -riṣīkāt