Where does “Νικόπολη” come from?

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

Ancestry of “Νικόπολη”, step by step

Νικόπολη traces back through two separate lines of ancestry.

via Greek πόλη

Step	Language	Word	Meaning
1	Greek	πόλη	town, city; townspeople
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

via Greek νίκη

Step	Language	Word	Meaning
1	Greek	νίκη	victory
2	Ancient Greek	Νῑ́κη	—
3	Ancient Greek	νῑ́κη	conquered; victory

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