Declension table of syūman

Neuter	Singular	Dual	Plural
Nominative	syūma	syūmnī	syūmāni
Vocative	syūman syūma	syūmnī	syūmāni
Accusative	syūma	syūmnī	syūmāni
Instrumental	syūmnā	syūmabhyām	syūmabhiḥ
Dative	syūmne	syūmabhyām	syūmabhyaḥ
Ablative	syūmnaḥ	syūmabhyām	syūmabhyaḥ
Genitive	syūmnaḥ	syūmnoḥ	syūmnām
Locative	syūmni syūmani	syūmnoḥ	syūmasu

Compound syūma -

Adverb -syūma -syūmam