Its exact etymological origins are unknown, but there are several candidates.
的确切词源是未知的,但有几可能性。
If feeling that " of obscure origin" is the best we can do for copacetic, take a look at the long etymological note at the entry for copacetic at mariam-webster.com for a discussion of the word's history.
如果觉得“起源不明” 是我们能为 copacet 做的最好的事情,请查看 mariam-webster.com 上的 copacet 条目中的长词源注释,以讨论该词的历史。