Where does “Tšekkoslovakia” come from?

Tšekkoslovakia (Finnish) comes from Czech Československo, from Czech český, from Old Czech češský, from Old Czech Čech, from Proto-Slavic čelověkъ, from Proto-Indo-European (s)kʷel-, from Proto-Indo-European kʷel- — to turn.

Ancestry of “Tšekkoslovakia”, step by step

StepLanguageWordMeaning
1CzechČeskoslovensko—
2CzechčeskýCzech; Bohemian
3Old CzechčešskýCzech
4Old CzechČechCzech person
5Proto-Slavicčelověkъman, human
6Proto-Indo-European(s)kʷel-crowd, people
7Proto-Indo-Europeankʷel-to turn

Words derived from “Tšekkoslovakia”

Every word from Proto-Indo-European kʷel- →Every word from Proto-Indo-European (s)kʷel- →Every word from Proto-Slavic čelověkъ →