Where does “Куп'янськ” come from?

Куп'янськ (Ukrainian) comes from Ukrainian -ськ, from Proto-Slavic -ьskъ, from Proto-Indo-European -iskos — Characteristic of, typical of, pertaining to.

Ancestry of “Куп'янськ”, step by step

StepLanguageWordMeaning
1Ukrainian-ськia, a suffix used in place names
2Proto-Slavic-ьskъ-ic, -ish
3Proto-Indo-European-iskosCharacteristic of, typical of, pertaining to
Every word from Proto-Indo-European -iskos →Every word from Proto-Slavic -ьskъ →Every word from Ukrainian -ськ →