Where does “vest” come from?

Vest comes from French veste, from Latin vestis meaning garment, ultimately from Proto-Indo-European wes-.

vest (English): A loose robe or outer garment worn historically...

Definitions

Step	Language	Word	Meaning
1	French	veste	jacket
2	Italian	veste	dress; clothes; appearance, capacity
3	Latin	vestis	garment, gown, robe, vestment, clothing, vesture;...
4	Latin	līnea	—
5	Latin	līnum	—
6	Proto-Italic	līnom	—
7	Proto-Indo-European	līnom	flax

vest — Etymology, Origin & Word History | Etymology Explorer