Where does “lidový” come from?

lidový (Czech) comes from Czech lid, from Proto-Slavic ľudъ, from Proto-Slavic milъ, from Proto-Balto-Slavic meiʔlos, from Proto-Indo-European meyl-.

lidový (Czech): folk

Definitions

Step	Language	Word	Meaning
1	Czech	lid	people
2	Proto-Slavic	ľudъ	people
3	Proto-Slavic	milъ	dear, nice, gentle, mild, soft, pleasant, polite
4	Proto-Balto-Slavic	meiʔlos	—
5	Proto-Indo-European	meyl-	—

lidový — Etymology, Origin & Word History | Etymology Explorer