Where does “Нікополь” come from?

Нікополь (Ukrainian) comes from Ancient Greek Νικόπολις, from Ancient Greek πόλις, from Proto-Hellenic ptólis, from Proto-Indo-European tpólHis, from Proto-Indo-European tpelH- — fortification, city.

Ancestry of “Нікополь”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Νικόπολις	city of victory
2	Ancient Greek	πόλις	city; a whole country, as dependent on and called...
3	Proto-Hellenic	ptólis	city
4	Proto-Indo-European	tpólHis	—
5	Proto-Indo-European	tpelH-	fortification, city

Every word from Proto-Indo-European tpelH- →Every word from Proto-Indo-European tpólHis →Every word from Proto-Hellenic ptólis →