Where does “sono” come from?
sono (Old Portuguese) comes from Latin somnus, from Proto-Italic swepnos, from Proto-Indo-European swépnos, from Proto-Indo-European swopnos, from Proto-Indo-European swep- — to sleep.
Ancestry of “sono”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Latin | somnus | sleep; drowsiness, slumber sloth, idleness; death |
| 2 | Proto-Italic | swepnos | — |
| 3 | Proto-Indo-European | swépnos | sleep, slumber |
| 4 | Proto-Indo-European | swopnos | dream |
| 5 | Proto-Indo-European | swep- | to sleep |