An unethical, unscrupulous practitioner, especially of law.
(slang) A person, esp. a lawyer, who uses unethical or tricky methods; pettifogger.
Origin of shyster
- Probably alteration of German Scheisser son of a bitch, bastard from scheissen to defecate from Middle High German schīzen from Old High German skīzzan skei- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
- The origin is mostly likely from German ScheiÃŸer (“incompetent worthless person"), from scheiÃŸen (“to defecate"), probably influenced by -ster