Discussion Forum—A Way with Words, a fun radio show and podcast about language

Let's address the 800-pound behemoth in the room: as a hypothesis, it doesn't strike me so much as a stretch, but I would be interested in a kosher source. To do otherwise would take a lot of chutzbah.

Interestingly, one reference I consulted defines tickety-boo as copacetic. While the etymology of copacetic is officially "orig. unk." (homage to Grant) according to most sources, one of the popular etymology theories is that it comes from the Hebrew (via Yiddish?) (ha)kol b'seder.

But don't mind me: such verbal tohubohu can be a bit much. Can I get a hallelujah?