Where does “Σκόπια” come from?

Σκόπια (Greek) comes from Macedonian Скопје, from Ancient Greek Σκοῦποι.

Ancestry of “Σκόπια”, step by step

Step	Language	Word	Meaning
1	Macedonian	Скопје	—
2	Ancient Greek	Σκοῦποι	—

Σκόπια — Etymology, Origin & Word History | Etymology Explorer