Where does “Contra Costa County” come from?
Contra Costa County (English) comes from Spanish contra costa, from Spanish costa, from Galician Costa, from Old Portuguese costa, from Latin costa, from Proto-Indo-European kost-.
Ancestry of “Contra Costa County”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Spanish | contra costa | — |
| 2 | Spanish | costa | coast, shore, coastline, shoreline; expense,... |
| 3 | Galician | Costa | {{m|gl|costa|gloss=slope}}, but also the name of... |
| 4 | Old Portuguese | costa | — |
| 5 | Latin | costa | a rib; a side, a wall |
| 6 | Proto-Indo-European | kost- | — |