buckaroo

[buhk-uh-roo, buhk-uh-roo] /ˈbʌk əˌru, ˌbʌk əˈru/
noun, plural buckaroos.
1.
Western U.S. a cowboy, especially a broncobuster.
2.
Older Slang. fellow; guy.
Origin
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
Examples from the web for buckaroo
  • The addition of a couple of the buckaroo dancers getting hitched to each other would be welcome addition to the ending.
  • The buckaroo life has undergone many changes since its nineteenth-century beginnings.
  • Although you could nickname this little fellow buckaroo, this is actually a picture of a fawn.
  • The true buckaroo prefers working cattle on horseback.
British Dictionary definitions for buckaroo

buckaroo

/ˈbʌkəˌruː; ˌbʌkəˈruː/
noun (pl) -roos
1.
(Southwestern US) a cowboy
Word Origin
C19: variant of Spanish vaquero, from vaca cow, from Latin vacca
Word Origin and History for buckaroo
n.

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).