By Gene Demby, Code Switch @ npr.org, July 1, 2012
[.....] But it turns out cracker's roots go back even further than the 17th century. All the way back to the age of Shakespeare, at least.
"The meaning of the word has changed a lot over the last four centuries," said Dana Ste. Claire, a Florida historian and anthropologist who studies, er, crackers. (He literally wrote the book on them.)
Ste. Claire pointed me to King John, published sometime in the 1590s. One character refers to another as a craker — a common insult for an obnoxious bloviator.
What craker is this same that deafs our ears with this abundance of superfluous breath?
"It's a beautiful quote, but it was a character trait that was used to describe a group of Celtic immigrants — Scots-Irish people who came to the Americas who were running from political circumstances in the old world," Ste. Claire said. Those Scots-Irish folks started settling the Carolinas, and later moved deeper South and into Florida and Georgia.
But the disparaging term followed these immigrants, who were thought by local officials to be unruly and ill-mannered [....]