Where does “thumo” come from?
thumo (Old Saxon) comes from Proto-West Germanic þūmō, from Proto-Germanic þūmô, from Proto-Indo-European tūm-, from Proto-Indo-European tewh₂- — to swell; to crowd; to be strong.
thumo (Old Saxon): thumb
Ancestry of “thumo”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-West Germanic | þūmō | thumb |
| 2 | Proto-Germanic | þūmô | thumb |
| 3 | Proto-Indo-European | tūm- | to grow; to swell, to increase; to swell, be... |
| 4 | Proto-Indo-European | tewh₂- | to swell; to crowd; to be strong |