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[buhk-uh-roo, buhk-uh-roo] /ˈbʌk əˌru, ˌbʌk əˈru/
noun, plural buckaroos.
Western U.S. a cowboy, especially a broncobuster.
Older Slang. fellow; guy.
Origin of buckaroo
1820-30, Americanism; earlier bakhara, baccaro, bucharo < Spanish vaquero, equivalent to vac(a) cow (< Latin vacca) + -ero < Latin -ārius -ary; perhaps influenced by buckra; later probably reanalyzed as buck1 + -eroo Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for buckaroo
Historical Examples
  • They go and throw every Tom, Dick, and Harry in this here cell, and some buckaroo has half tore up the mattress.

    The Dude Wrangler

    Caroline Lockhart
British Dictionary definitions for buckaroo


/ˈbʌkəˌruː; ˌbʌkəˈruː/
noun (pl) -roos
(Southwestern US) a cowboy
Word Origin
C19: variant of Spanish vaquero, from vaca cow, from Latin vacca
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for buckaroo

1889, American English, from bakhara (1827), from Spanish vaquero "cowboy," from vaca "cow," from Latin vacca (see vaccination). Spelling altered by influence of buck (n.1).

Online Etymology Dictionary, © 2010 Douglas Harper
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