Where does “pjena” come from?
pjena (Serbo-Croatian) comes from Proto-Slavic pěna, from Proto-Balto-Slavic *(s)páināˀ, from Proto-Indo-European (s)poH(y)-, from Proto-Indo-European speh₁- — to succeed, to prosper.
pjena (Serbo-Croatian): foam
Ancestry of “pjena”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Slavic | pěna | foam |
| 2 | Proto-Balto-Slavic | *(s)páināˀ | — |
| 3 | Proto-Indo-European | (s)poH(y)- | foam |
| 4 | Proto-Indo-European | speh₁- | to succeed, to prosper |