Where does “pauschale” come from?

pauschale (New Latin) comes from Latin pauschalis, from German Bausch, from Middle High German būsch, from Old High German busk, from Proto-West Germanic busk, from Proto-Germanic buskaz, from Proto-Indo-European bʰuH- — to become, grow, appear.

Ancestry of “pauschale”, step by step

StepLanguageWordMeaning
1Latinpauschalis
2GermanBauschwad; pad
3Middle High Germanbūsch
4Old High Germanbuskbush
5Proto-West Germanicbuskbush, thicket
6Proto-Germanicbuskazbush; thicket
7Proto-Indo-EuropeanbʰuH-to become, grow, appear
Every word from Proto-Indo-European bʰuH-Every word from Proto-Germanic buskazEvery word from Proto-West Germanic busk