flunky

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A person of slavish or unquestioning obedience; a lackey.
• noun One who does menial or trivial work; a drudge.
• noun A liveried manservant.

from The Century Dictionary.

• noun A cabin waiter on a passenger-vessel.
• noun A male servant in livery: used in contempt.
• noun Hence One who is mean and base-spirited; a cringing flatterer and servile imitator of those above him in rank or position; a toady; a snob.
• noun In the United States, among stock-brokers, a person who, from inexperience, makes bad investments or loses his money.

from the GNU version of the Collaborative International Dictionary of English.

• noun A contemptuous name for a liveried servant or a footman.
• noun One who is obsequious or cringing; a snob.
• noun Cant, U.S. One easily deceived in buying stocks; an inexperienced and unwary jobber.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A sycophant; a servant or hanger-on who is kept for their loyalty or muscle rather than their intellect.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a male servant (especially a footman)
• noun a person of unquestioning obedience