Declension table of ?riśamāna

Neuter	Singular	Dual	Plural
Nominative	riśamānam	riśamāne	riśamānāni
Vocative	riśamāna	riśamāne	riśamānāni
Accusative	riśamānam	riśamāne	riśamānāni
Instrumental	riśamānena	riśamānābhyām	riśamānaiḥ
Dative	riśamānāya	riśamānābhyām	riśamānebhyaḥ
Ablative	riśamānāt	riśamānābhyām	riśamānebhyaḥ
Genitive	riśamānasya	riśamānayoḥ	riśamānānām
Locative	riśamāne	riśamānayoḥ	riśamāneṣu

Compound riśamāna -

Adverb -riśamānam -riśamānāt