Where does “*zapadъ” come from?
*zapadъ (Proto-Slavic) comes from Proto-Slavic pastì, from Proto-Balto-Slavic pṓˀstei, from Proto-Indo-European pēd-, from Proto-Indo-European ped- — to walk, to step; to stumble, to fall.
Ancestry of “*zapadъ”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Slavic | pastì | — |
| 2 | Proto-Balto-Slavic | pṓˀstei | — |
| 3 | Proto-Indo-European | pēd- | foot |
| 4 | Proto-Indo-European | ped- | to walk, to step; to stumble, to fall |