Where does “buska” come from?

buska (Frankish) comes from Proto-Germanic buskaz, from Proto-Indo-European bʰuH- — to become, grow, appear.

Ancestry of “buska”, step by step

StepLanguageWordMeaning
1Proto-Germanicbuskazbush; thicket
2Proto-Indo-EuropeanbʰuH-to become, grow, appear
Every word from Proto-Indo-European bʰuH-Every word from Proto-Germanic buskaz