Where does “os” come from?
os (Latin) comes from Proto-Italic ōs, from Proto-Indo-European h₃ésth₁ — bone.
os (Latin): mouth
Definitions
- mouth
Ancestry of “os”, step by step
os traces back through two separate lines of ancestry.
via Proto-Indo-European h₁óh₃s
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Proto-Indo-European | h₁óh₃s | mouth |
| 2 | Proto-Indo-European | h₁óh₃-s ~ h₁éh₃-s | — |