copacetic
UK[ˌkəʊpəˈsetɪk]US[ˌkoʊpəˈsetɪk]
adj
completely satisfactory or in good order.
Etymology
the origin of 'copacetic' is obscure and debated, with no clear consensus on its etymology. one popular but unverified theory traces it to african american vernacular english, possibly from a southern pronunciation of a creole phrase. another theory suggests it may derive from the hebrew phrase 'kol b'seder,' meaning 'all is in order,' though this link is speculative. despite its mysterious beginnings, the word entered more widespread american english slang in the early 20th century, famously used by tap dancer bill "bojangles" robinson, and has since settled into the language with its meaning of everything being fine and satisfactory.
Analysis
this word is a simplex loanword of uncertain origin. it does not lend itself to segmentation into productive english morphemes.
Examples
after a thorough inspection, the mechanic assured me the engine was copacetic.
don't worry about the arrangements; everything is copacetic for the party.
once the misunderstanding was cleared up, relations between the two departments were copacetic again.