Where does “třieda” come from?
třieda (Old Czech) comes from Italian strada, from Latin strāta, from Latin strātus, from Latin sternō, from Proto-Italic stornō, from Proto-Indo-European str̥-n-h₃-, from Proto-Indo-European sterh₃-, from Proto-Indo-European ster- — sterile, infertile.
Ancestry of “třieda”, step by step