Where does “*lappacea” come from?

*lappacea (Latin) comes from Latin lappa, from Proto-Indo-European leb- — to hang down loosely; lip; lick.

Ancestry of “*lappacea”, step by step

StepLanguageWordMeaning
1Latinlappaburdock
2Proto-Indo-Europeanleb-to hang down loosely; lip; lick
Every word from Proto-Indo-European leb- →Every word from Latin lappa →