Where does “Умань” come from?

Умань (Ukrainian) comes from Ukrainian -ь, from Proto-Slavic -ь, from Proto-Indo-European -is — Forms nouns from verbs.

Ancestry of “Умань”, step by step

StepLanguageWordMeaning
1Ukrainian-ь—
2Proto-Slavic-ьForms nouns; From adjectives; From participles
3Proto-Indo-European-isForms nouns from verbs
Every word from Proto-Indo-European -is →Every word from Proto-Slavic -ь →Every word from Ukrainian -ь →