"one whose occupation is to chave the beard and cut and dress the hair," c. 1300, from Anglo-French barbour (attested as a surname from early 13c.), from Old French barbeor, barbieor (13c., Modern French barbier, which has a more restricted sense than the English word), from Vulgar Latin *barbatorem, from Latin barba "beard" (see barb (n.)). Originally also regular practitioners of minor surgery, they were restricted to hair-cutting, blood-letting, and dentistry under Henry VIII. The barber's pole (1680s) is in imitation of the ribbon used to bind the arm of one who has been bled.
"to shave and dress the hair," c.1600, from barber (n.). Related: Barbered; barbering.