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An unethical, unscrupulous practitioner, especially of law.
[Probably alteration of German Scheisser, son of a bitch, bastard, from scheissen, to defecate, from Middle High German schīzen, from Old High German skīzzan; see skei- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
informal chiefly US a person, esp a lawyer or politician, who uses discreditable or unethical methods
[C19: probably based on Scheuster, name of a disreputable 19th-century New York lawyer]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
1. a lawyer who uses unprofessional or questionable methods.
2. a person who gets along by petty, sharp practices.
[1835–45, Amer.; probably < German Scheisser, literally, defecator]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
chicaneurenculeur de mouches
shyster[ˈʃaɪstəʳ] N (esp US) → tramposo/a m/f, estafador(a) m/f; (= lawyer) → picapleitos mf inv sin escrúpulos
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