Where does “lappēn” come from?

lappēn (Proto-Germanic) comes from Proto-Indo-European leb- — to hang down loosely; lip; lick.

Ancestry of “lappēn”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeanleb-to hang down loosely; lip; lick
Every word from Proto-Indo-European leb-