Where does “*flak” come from?

*flak (Proto-West Germanic) comes from Proto-Germanic flakaz, from Proto-Indo-European pl̥keh — flat surface.

Ancestry of “*flak”, step by step

StepLanguageWordMeaning
1Proto-Germanicflakazflat
2Proto-Indo-Europeanpl̥kehflat surface

Words derived from “*flak”

Every word from Proto-Indo-European pl̥keh →Every word from Proto-Germanic flakaz →