Where does “*aspu” come from?
*aspu (Proto-West Germanic) comes from Proto-Germanic aspō, from Proto-Indo-European Hosp- — aspen, poplar.
Ancestry of “*aspu”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Germanic | aspō | aspen |
| 2 | Proto-Indo-European | Hosp- | aspen, poplar |