Where does “узкоколейный” come from?

узкоколейный (Russian) comes from Russian у́зкий, from Proto-Slavic ǫzъkъ, from Proto-Balto-Slavic anźukas, from Proto-Balto-Slavic anźus, from Proto-Indo-European h₂énǵʰus, from Proto-Indo-European h₂enǵʰ- — to constrict, tighten, compress; narrow, tight;...

узкоколейный (Russian): narrow gauge

Definitions

  1. narrow gauge

Ancestry of “узкоколейный”, step by step

узкоколейный traces back through two separate lines of ancestry.

via Russian у́зкий

StepLanguageWordMeaning
1Russianу́зкийnarrow
2Proto-Slavicǫzъkъnarrow, tight
3Proto-Balto-Slavicanźukas
4Proto-Balto-Slavicanźus
5Proto-Indo-Europeanh₂énǵʰusnarrow, tight
6Proto-Indo-Europeanh₂enǵʰ-to constrict, tighten, compress; narrow, tight;...

via Russian колея́

StepLanguageWordMeaning
1Russianколея́rut mark of wheels on the ground
Every word from Proto-Indo-European h₂enǵʰ-Every word from Proto-Indo-European h₂énǵʰusEvery word from Proto-Balto-Slavic anźus