Where does “Пятиго́рск” come from?

Пятиго́рск (Russian) comes from Russian пять, from Old Church Slavonic пѧть, from Proto-Slavic pętь, from Proto-Indo-European pénkʷe — five.

Ancestry of “Пятиго́рск”, step by step

Пятиго́рск traces back through two separate lines of ancestry.

via Russian пять

StepLanguageWordMeaning
1Russianпятьfive; second-person singular imperative...
2Old Church Slavonicпѧтьfive
3Proto-Slavicpętьfive
4Proto-Indo-Europeanpénkʷefive

via Russian гора́

StepLanguageWordMeaning
1Russianгора́mountain, heap
2Proto-Slavicgoràmountain
3Proto-Balto-Slavicgarā́ˀmountain
4Proto-Indo-EuropeangʷerH-to express approval; praise; to elevate

Words derived from “Пятиго́рск”

Every word from Proto-Indo-European pénkʷe →Every word from Proto-Slavic pętь →Every word from Old Church Slavonic пѧть →