Where does “dat” come from?
dat (West Frisian) comes from West Frisian dy, from Old Frisian thī, from Proto-Germanic þiz, from Proto-Indo-European te, from Proto-Indo-European túh₂ — you, thou.
dat (West Frisian): that; neuter of dy
Ancestry of “dat”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | West Frisian | dy | that, those; object of do |
| 2 | Old Frisian | thī | — |
| 3 | Proto-Germanic | þiz | dative/instrumental of *þū |
| 4 | Proto-Indo-European | te | clitic accusative of *túh₂: thee |
| 5 | Proto-Indo-European | túh₂ | you, thou |