porter1

noun

• 1a person employed to carry luggage and other loads, especially in a railway station, airport, hotel, or market.
• British a hospital employee who moves equipment or patients.
• a person employed to carry supplies on a mountaineering expedition.
• North American a sleeping-car attendant.

• 2 [mass noun] dark brown bitter beer brewed from malt partly charred or browned by drying at a high temperature: a nice pint of porter [count noun]:the company produces a bottle-conditioned porter

  [originally made as a drink for porters]