Where does “kōl” come from?
kōl (Old Frisian) comes from Proto-West Germanic kōl(ī), from Proto-Germanic kōluz, from Proto-Germanic kalaną, from Proto-Indo-European ǵel- — to swallow; swallow.
Ancestry of “kōl”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-West Germanic | kōl(ī) | cool |
| 2 | Proto-Germanic | kōluz | cool |
| 3 | Proto-Germanic | kalaną | to be cold, to freeze |
| 4 | Proto-Indo-European | ǵel- | to swallow; swallow |