Declension table of ?suma

Masculine	Singular	Dual	Plural
Nominative	sumaḥ	sumau	sumāḥ
Vocative	suma	sumau	sumāḥ
Accusative	sumam	sumau	sumān
Instrumental	sumena	sumābhyām	sumaiḥ sumebhiḥ
Dative	sumāya	sumābhyām	sumebhyaḥ
Ablative	sumāt	sumābhyām	sumebhyaḥ
Genitive	sumasya	sumayoḥ	sumānām
Locative	sume	sumayoḥ	sumeṣu

Compound suma -

Adverb -sumam -sumāt