or co·pa·set·ic, co·pe·set·ic
fine; completely satisfactory; OK.
Origin of copacetic
1915–20, Americanism; of obscure origin; popular attributions of the word to Louisiana French, Italian, Hebrew, etc., lack supporting evidence
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for copaceticpleasant, satisfactory, acceptable, enjoyable, attractive, tempting, appetizing, cordial, likable, sweet, cheerful, mild, bland, satisfying, amusing, agreeable, pleasing, pleasurable, amiable, polite
copasetic, copesetic or copesettic
US and Canadian slang very good; excellent; completely satisfactory
Word Origin for copacetic
C20: of unknown origin
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
1919, but it may have origins in 19c. U.S. Southern black speech. Origin unknown, suspects include Latin, Yiddish (e.g. Hebrew kol b'seder), Italian, Louisiana French (coupe-sétique), and Native American. None is considered convincing by linguists.
Online Etymology Dictionary, © 2010 Douglas Harper