Where does “Zymohiria” come from?

Zymohiria (English) comes from Ukrainian Зимогі́р'я, from Ukrainian зима́, from Proto-Slavic zimà, from Proto-Balto-Slavic źeimā́ˀ, from Proto-Indo-European ǵʰéyōm, from Proto-Indo-European -ōm, from Proto-Indo-European -mi.

Ancestry of “Zymohiria”, step by step

StepLanguageWordMeaning
1UkrainianЗимогі́р'я—
2Ukrainianзима́winter
3Proto-Slaviczimàwinter
4Proto-Balto-Slavicźeimā́ˀwinter
5Proto-Indo-Europeanǵʰéyōmwinter; year; frost, snow
6Proto-Indo-European-ōmemphatic suffix or postpositive particle
7Proto-Indo-European-mi—
Every word from Proto-Indo-European -mi →Every word from Proto-Indo-European -ōm →Every word from Proto-Indo-European ǵʰéyōm →