Where does “tau” come from?
tau (North Frisian) comes from Old Frisian twēne, from Proto-West Germanic twai-, from Proto-Germanic twai, from Proto-Indo-European dwóh₁ — two.
tau (North Frisian): two
Ancestry of “tau”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Old Frisian | twēne | — |
| 2 | Proto-West Germanic | twai- | two |
| 3 | Proto-Germanic | twai | two |
| 4 | Proto-Indo-European | dwóh₁ | two |