Declension table of ?tumbuma

Masculine	Singular	Dual	Plural
Nominative	tumbumaḥ	tumbumau	tumbumāḥ
Vocative	tumbuma	tumbumau	tumbumāḥ
Accusative	tumbumam	tumbumau	tumbumān
Instrumental	tumbumena	tumbumābhyām	tumbumaiḥ tumbumebhiḥ
Dative	tumbumāya	tumbumābhyām	tumbumebhyaḥ
Ablative	tumbumāt	tumbumābhyām	tumbumebhyaḥ
Genitive	tumbumasya	tumbumayoḥ	tumbumānām
Locative	tumbume	tumbumayoḥ	tumbumeṣu

Compound tumbuma -

Adverb -tumbumam -tumbumāt