Where does “lèv” come from?

lèv (Haitian Creole) comes from French lèvre, from Middle French lévre, from Old French levre, from Vulgar Latin labra, from Latin lābrum, from Latin lavābrum, from Latin lavō, from Proto-Italic lawaō — to wash.

lèv (Haitian Creole): lip

Definitions

Ancestry of “lèv”, step by step

Step	Language	Word	Meaning
1	French	lèvre	lip
2	Middle French	lévre	—
3	Old French	levre	—
4	Vulgar Latin	labra	—
5	Latin	lābrum	lip
6	Latin	lavābrum	—
7	Latin	lavō	to wash, bathe
8	Proto-Italic	lawaō	—
9	Proto-Indo-European	léwh₃eti	—
10	Proto-Indo-European	lewh₃-	to wash

Every word from Proto-Indo-European lewh₃- →Every word from Proto-Indo-European léwh₃eti →Every word from Proto-Italic lawaō →