Where does “Hladki” come from?

Hladki (English) comes from Czech hladký, from Old Czech hladký, from Proto-Slavic gladъkъ, from Proto-Balto-Slavic glā́ˀdus, from Proto-Indo-European gʰleh₂dʰ- — bright, shining; smooth.

Ancestry of “Hladki”, step by step

Hladki traces back through 3 separate lines of ancestry.

via Czech hladký

StepLanguageWordMeaning
1Czechhladkýsmooth
2Old Czechhladkýsmooth
3Proto-Slavicgladъkъsmooth, plain
4Proto-Balto-Slavicglā́ˀdussmooth
5Proto-Indo-Europeangʰleh₂dʰ-bright, shining; smooth

via Russian гла́дкий

StepLanguageWordMeaning
1Russianгла́дкийsmooth
2Ukrainian-ість-hood, -ness, -ity
3Proto-Slavic-ostьUsed with adjectival stems to form abstract...

via Slovak hladký

StepLanguageWordMeaning
1Slovakhladkýsmooth
Every word from Proto-Indo-European gʰleh₂dʰ- →Every word from Proto-Balto-Slavic glā́ˀdus →Every word from Proto-Slavic gladъkъ →