IPA: //ˈtiːm.stər//
KK: /ˈtimstər/
A person who drives a team of animals or a truck to transport goods, often as a job.
The teamster skillfully maneuvered the truck through the busy streets.
Teamster → It is formed from "team" (from Old English *team*, meaning a group of animals harnessed together) and "-ster" (a suffix denoting a person associated with a specific activity). A teamster is a person who drives a team of animals, especially horses, for transportation or hauling goods.
Think of a 'team' of animals working together, and the '-ster' means a person involved in that work. A teamster is someone who drives a team.