Where does “*casto” come from?
*casto (Old Dutch) comes from Proto-West Germanic kastō, from Proto-Germanic kazą, from Proto-Germanic kas- — to throw; bring up; toss.
Ancestry of “*casto”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-West Germanic | kastō | box, case |
| 2 | Proto-Germanic | kazą | vessel, vat, tub, barrel |
| 3 | Proto-Germanic | kas- | to throw; bring up; toss |