Where does “osa” come from?
osa (Serbo-Croatian) comes from Proto-Slavic osà, from Proto-Balto-Slavic *wápsāˀ, from Proto-Indo-European wobʰséh₂, from Proto-Indo-European webʰ- — to weave, braid.
osa (Serbo-Croatian): wasp; axis
Ancestry of “osa”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Slavic | osà | — |
| 2 | Proto-Balto-Slavic | *wápsāˀ | — |
| 3 | Proto-Indo-European | wobʰséh₂ | — |
| 4 | Proto-Indo-European | webʰ- | to weave, braid |