1560s, "buying and selling, act of transacting business in a market," verbal noun from market (v.). Meaning "produce bought or sold at a market" is from 1701. The business sense, "process of moving goods from producer to consumer with emphasis on advertising and sales," is attested by 1897.
most companies have a manager in charge of marketing
does the weekly marketing at the supermarket
marked
markedly
marker
market
marketable
marketing
marketplace
marking
marksman
marksmanship
mark-up