Where does “luchtkoeler” come from?
luchtkoeler (Dutch) comes from Dutch koeler, from Dutch koelen, from Middle Dutch coelen, from Old Dutch kuolen, from Proto-West Germanic kōlijan, from Proto-Germanic kōlijaną, from Proto-Germanic kōlaz, from Proto-Germanic kōluz — to swallow; swallow.
luchtkoeler (Dutch): intercooler
Ancestry of “luchtkoeler”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Dutch | koeler | cooler |
| 2 | Dutch | koelen | to cool |
| 3 | Middle Dutch | coelen | — |
| 4 | Old Dutch | kuolen | make cooler |
| 5 | Proto-West Germanic | kōlijan | to cool, to make cooler |
| 6 | Proto-Germanic | kōlijaną | to make cold, to cool |
| 7 | Proto-Germanic | kōlaz | Alternative form of *kōluz; cool, cold; calm |
| 8 | Proto-Germanic | kōluz | cool |
| 9 | Proto-Germanic | kalaną | to be cold, to freeze |
| 10 | Proto-Indo-European | ǵel- | to swallow; swallow |