Where does “キエフ” come from?

キエフ (Japanese) comes from Russian Ки́ев, from Old East Slavic Кꙑевъ.

Ancestry of “キエフ”, step by step

StepLanguageWordMeaning
1RussianКи́евKiev
2Old East SlavicКꙑевъ
Every word from Old East Slavic КꙑевъEvery word from Russian Ки́ев