Where does “sake” come from?

sake (Old Frisian) comes from Proto-Germanic sakō, from Proto-Indo-European seh₂g- — to seek out.

Ancestry of “sake”, step by step

StepLanguageWordMeaning
1Proto-Germanicsakōquarrel; charge, case, lawsuit; thing, matter
2Proto-Indo-Europeanseh₂g-to seek out
Every word from Proto-Indo-European seh₂g-Every word from Proto-Germanic sakō