Where does “flak” come from?
flak (Old Saxon) comes from Proto-Germanic *flak, from Proto-Germanic flakaz, from Proto-Indo-European pl̥keh — flat surface.
Ancestry of “flak”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Germanic | *flak | — |
| 2 | Proto-Germanic | flakaz | flat |
| 3 | Proto-Indo-European | pl̥keh | flat surface |