Meaning

noun a man's sleeveless garment worn underneath a coat

noun a collarless men's undergarment for the upper part of the body

verb provide with power and authority

originDerived from French veste (“a vest, jacket”), from Latin vestis (“a garment, gown, robe, vestment, clothing, vesture”), from Proto-Indo-European *wéstis, from *wes- (“to be dressed”) (English wear). Cognate with Sanskrit वस्त्र (vastra) and Spanish vestir.

Etymology from Wiktionary, CC BY-SA 3.0