Where does “hladkost” come from?
hladkost (Czech) 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.
hladkost (Czech): smoothness
Ancestry of “hladkost”, step by step