(n.) One who drives or uses a cart; a teamster; a carter.

Jehu cabby cabdriver cabman cameleer carter cartman charioteer coachman coachy cocher cochero drayman driver elephant driver gharry-wallah hack hackman hacky harness racer mahout mule skinner muleteer reinsman skinner stage coachman teamster truckman vetturino voiturier wagoner wagonman whip